MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U-18411

Transcription

1 Exhibit No.: A-1 (JRC-1) Calculation of Base GCR Ceiling Factor Page: 1 of 1 Twelve-Month Period Ending March 31, 2019 Witness: JRCoker Based on the December 2017 COG Forecast and the November 2017 Sales Forecast Line Apr-2018 May-2018 Jun-2018 Jul-2018 Aug-2018 Sep-2018 Oct-2018 Nov-2018 Dec-2018 Jan-2019 Feb-2019 Mar-2019 No. Description Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast TOTAL SOURCES OF GAS IN MCF 1 Purchased & produced 22,500,009 20,961,167 20,285,001 20,961,167 20,961,167 20,285,000 13,949,990 9,132,092 9,829,132 10,559,730 8,135,137 9,660, ,220,233 2 Net (to) from storage (9,597,785) (14,817,989) (17,042,872) (17,284,955) (17,508,716) (14,879,692) (1,245,505) 11,051,608 21,057,491 25,287,638 22,145,439 13,929,967 1,094,628 3 Total supply 12,902,224 6,143,178 3,242,129 3,676,212 3,452,451 5,405,308 12,704,485 20,183,700 30,886,624 35,847,368 30,280,576 23,590, ,314,861 Less volumes for: 4 Company use gas 180, , , , , , , , , , , ,000 2,593,000 5 Gas-in-kind credits (193,054) (186,210) (170,391) (178,402) (181,888) (180,696) (209,727) (227,617) (249,329) (272,877) (257,974) (254,431) (2,562,597) 6 Lost & unaccounted for gas 308, ,812 80,508 78,478 72, , , , , , , ,737 3,997,790 7 Total GCR Supplies 12,607,126 5,999,576 3,203,012 3,569,135 3,338,642 5,219,933 12,421,968 19,879,319 30,246,176 35,024,954 29,651,526 23,125, ,286,668 GCR SALES IN MCF 8 Rate schedule sales (billed) 20,547,784 10,828,332 5,831,317 3,737,470 3,348,266 3,589,067 5,880,481 13,218,371 24,298,303 34,554,100 33,217,363 28,865, ,916,746 9 Unbilled - prior month 16,581,396 24,522,054 29,350,811 31,979,115 32,147,450 32,157,074 30,526,207 23,984,719 17,323,771 11,375,899 10,905,045 14,470, ,324, Unbilled - current month (24,522,054) (29,350,811) (31,979,115) (32,147,450) (32,157,074) (30,526,207) (23,984,719) (17,323,771) (11,375,899) (10,905,045) (14,470,882) (20,211,473) (278,954,500) 11 Unbilled rate schedule sales (7,940,658) (4,828,757) (2,628,304) (168,335) (9,624) 1,630,867 6,541,488 6,660,948 5,947, ,853 (3,565,837) (5,740,591) (3,630,077) 12 Total GCR Sales 12,607,126 5,999,576 3,203,012 3,569,135 3,338,642 5,219,934 12,421,968 19,879,319 30,246,176 35,024,953 29,651,526 23,125, ,286,668 0 (0) (0) (0) 0 (0) (0) (0) GCR COST OF GAS SOLD IN DOLLARS 13 Purchased & produced 62,925,425 57,252,494 55,984,117 58,876,891 58,981,824 56,154,577 39,560,017 27,067,348 30,906,127 34,319,618 26,503,091 29,748, ,280, Net (to) from storage (26,841,975) (40,473,263) (47,036,239) (48,550,943) (49,267,104) (41,191,166) (3,532,061) 32,297,498 61,538,944 73,901,230 64,718,388 40,709,286 16,272, Total cost of gas supplied 36,083,449 16,779,231 8,947,878 10,325,948 9,714,720 14,963,411 36,027,956 59,364,846 92,445, ,220,849 91,221,479 70,458, ,553,018 Less cost of gas for: 16 Company use gas 503, , , , , , , , ,206 1,038, , ,314 7,479, Gas-in-kind credits (539,912) (508,606) (470,259) (501,105) (511,809) (500,217) (594,754) (669,472) (746,252) (823,799) (777,158) (759,911) (7,403,253) 18 Lost & unaccounted for gas 861, , , , , , ,639 1,191,191 1,890,936 2,268,100 1,958,221 1,546,327 11,764, GCR Cost of Gas Sold 35,258,153 16,387,001 8,839,921 10,025,185 9,394,476 14,450,241 35,226,782 58,469,592 90,528, ,738,034 89,326,443 69,068, ,712,459 GCR REVENUE & REFUNDABLE AMTS IN DOLLARS 20 Maximum GCR factor per Mcf 21 GCR factor billed per Mcf $ Current Month Unbilled GCR factor Billed GCR revenue 60,469,350 31,866,318 17,160,777 10,998,869 9,853,494 10,562,138 17,305,459 38,899,879 71,506, ,688,045 97,754,207 84,948, ,013, Unbilled - Prior month 48,796,807 72,165,090 86,375,467 94,110,211 94,605,598 94,633,920 89,834,499 70,583,785 50,981,517 33,477,731 32,092,074 42,585, ,242, Unbilled - Current month (72,165,090) (86,375,467) (94,110,211) (94,605,598) (94,633,920) (89,834,499) (70,583,785) (50,981,517) (33,477,731) (32,092,074) (42,585,850) (59,479,633) (820,925,375) 26 Unbilled - Net (23,368,283) (14,210,378) (7,734,744) (495,386) (28,323) 4,799,422 19,250,714 19,602,268 17,503,785 1,385,657 (10,493,775) (16,893,784) (10,682,827) 27 Total GCR Revenue 37,101,067 17,655,940 9,426,032 10,503,483 9,825,171 15,361,559 36,556,173 58,502,147 89,010, ,073,702 87,260,432 68,054, ,330,747 Plus refundable amounts: 28 Prior year over/(under) recovery GCC Supply Equalization Charges AMA Revenues Buy/Sell Revenues Total Refundable Amounts Total GCR Revenue & Refundable Amounts 37,101,067 17,655,940 9,426,032 10,503,483 9,825,171 15,361,559 36,556,173 58,502,147 89,010, ,073,702 87,260,432 68,054, ,330, Current Month Over (Under) Recovery 1,842,914 1,268, , , , ,318 1,329,391 32,555 (1,517,776) (2,664,332) (2,066,011) (1,013,815) (381,712) 35 Cumulative Over (Under) Recovery 1,842,914 3,111,853 3,697,965 4,176,263 4,606,958 5,518,276 6,847,667 6,880,222 5,362,446 2,698, ,104 (381,712) (381,712) INTEREST 36 1/2 Current Month 921, , , , , , ,696 16,278 (758,888) (1,332,166) (1,033,005) (506,908) 37 Year to Date Recovery - 1,842,914 3,111,853 3,697,965 4,176,263 4,606,958 5,518,276 6,847,667 6,880,222 5,362,446 2,698, , Average Balance 921,457 2,477,384 3,404,909 3,937,114 4,391,610 5,062,617 6,182,971 6,863,945 6,121,334 4,030,280 1,665, , Interest Rate 10.10% 10.10% 10.10% 10.10% 10.10% 10.10% 10.10% 10.10% 10.10% 10.10% 10.10% 10.10% 40 Current Month Interest 7,649 21,251 28,265 33,773 37,672 42,027 53,038 56,980 52,509 34,572 12,901 1, , Total Current Month Over (Under) Recovery 1,850,563 1,290, , , , ,345 1,382,429 89,535 (1,465,267) (2,629,760) (2,053,110) (1,012,741) $ 0

2 Exhibit No.: A-2 (JRC-2) Revised Tariff Sheet D-2.00 (Gas Cost Recovery (GCR) Factors) Page: 1 of 1 Witness: JRCoker M.P.S.C. No. 2 Gas GAS COST RECOVERY (GCR) FACTORS Plan Case Maximum Allowable GCR Factor $/Mcf Actual GCR Factor Billed Billing Months (Subject to Ceiling Price Adjustment) $/Mcf April $ $ May June July August September October November December January February March Plan Case Maximum Allowable GCR Factor $/Mcf Actual GCR Factor Billed Billing Months (Subject to Ceiling Price Adjustment) $/Mcf April $ $ May June July August September October November December January February March Sheet No. D-2.00 The listed monthly Gas Cost Recovery (GCR) factors are authorized pursuant to Rule No. C7., Gas Cost Recovery Clause and Standard Refund Procedures. The Maximum Allowable GCR Factors shown above are subject to adjustment pursuant to the GCR Factor Ceiling Price Adjustment (Contingency) Mechanism beginning on Sheet No. D-3.00 for the April through March period. Sheet No. D-2.00 will be updated if adjustments are made pursuant to this mechanism. The Commission is authorized to approve GCR ceiling price adjustments contingent on future events pursuant to Section 6h(6) of 1982 PA 304, as amended. The Maximum Allowable GCR Factors, adjusted pursuant to the GCR Factor Ceiling Price Adjustment (Contingency) Mechanism beginning on Sheet No. D-3.00, are the maximum rates the Company may charge. The actual GCR Factor Billed in any month may be less than the Maximum Allowable GCR Factor. The Company has filed for Maximum Allowable GCR Factors for April March in Case No. U U currently pending before the Michigan Public Service Commission. Pursuant to MCL 460.6h, the Company will adjust its rates to incorporate all or part of the requested factors as filed, including contingent factors, until the issuance of an order in Case No. U U The Company will file on or before December 31, for Maximum Allowable GCR Factors for April March pursuant to MCL 460.6h. The Company will file a revised Sheet No. D-2.00 at least 15 days before the actual GCR factor is billed to its customers in the subsequent billing month.

3 Exhibit No.: A-3 (JRC-3) Revised Tariff Sheets D-3.00 D-4.00 (Monthly Gas Cost Recovery Page: 1 of 2 (GCR) Factor Ceiling Price Adjustment (Contingency) Mechanism) Witness: JRCoker M.P.S.C. No. 2 - Gas Sheet No. D-3.00 MONTHLY GAS COST RECOVERY (GCR) FACTOR CEILING PRICE ADJUSTMENT (CONTINGENCY) MECHANISM The Maximum Allowable Gas Cost Recovery (GCR) Factors on Sheet No. D-2.00 may be adjusted on a monthly basis, for the remaining months of the GCR Plan Year, contingent upon Michigan prices for natural gas for the Plan Year increasing to a level above the Plan prices which were incorporated in the calculation of the base GCR ceiling factor. Any adjustment of the Maximum Allowable GCR Factor shall be determined using the tables set forth on Sheet D The Company shall file with the Commission an updated Sheet No. D-2.00 at least 15 days before any adjustment in the Maximum Allowable GCR Factor if a contingency calculation under the method described below results in an increase or decrease to the Maximum Allowable GCR ceiling factors on Sheet No. D All supporting documents necessary to verify an adjustment in the Maximum Allowable GCR Factor will be provided to the Michigan Public Service Commission Staff. Definitions: NYMEX Futures Month Prices Michigan Futures Month Basis 5-day Average Michigan Futures Strip Michigan Price Forecast NYMEX natural gas futures month settlement prices for the first five trading days (in $/MMBtu). The MichCon natural gas basis futures settlements published by CME Group for the first five trading days (in $/MMBtu). Five day average of the sum of the NYMEX Futures Month Prices and the Michigan Futures Month Basis for the remaining months of the GCR period. Average of the actual monthly MichCon Citygate Index prices for months in which they have become available and the 5-day Average Michigan Futures Strip. Step 1 Step 2 Step 3 Determine an updated 12-month Plan Michigan Price Forecast for the GCR period. The updated 12-month Michigan Price Forecast should be a 12-month average calculated using actual monthly MichCon Citygate Index prices for months in which they have become available and the 5-day Average Michigan Futures Strip for the remaining months in the GCR period. Subtract the 12-month Plan Michigan Price Forecast shown on Sheet No. D-4.00 from the updated 12-month Michigan Price Forecast calculated in Step 1. The "Contingent GCR Ceiling Factor" will be based on the price increases calculated. Determine the "Contingent GCR Ceiling Factor" using the following table on Sheet No. D This "Contingent GCR Ceiling Factor" will be the Maximum Allowable GCR Factor for the remaining months of the GCR Plan year, unless adjusted during a subsequent monthly review. (Continued on Sheet No. D-4.00)

4 Exhibit No.: A-3 (JRC-3) Revised Tariff Sheets D-3.00 D-4.00 (Monthly Gas Cost Recovery Page: 2 of 2 (GCR) Factor Ceiling Price Adjustment (Contingency) Mechanism) Witness: JRCoker M.P.S.C. No. 2 - Gas Sheet No. D-4.00 MONTHLY GAS COST RECOVERY (GCR) FACTOR CEILING PRICE ADJUSTMENT (CONTINGENCY) MECHANISM (Continued From Sheet No. D-3.00) 12-month Plan Michigan Price Forecast $ /MMBtu Base GCR Ceiling Factor $ /Mcf Fractional Multiplier Contingent GCR Ceiling Factor Michigan Price Michigan Price Michigan Price Forecast Increase $/Mcf Forecast Increase $/Mcf Forecast Increase $/Mcf <$0.05 $ <$1.05 $ <$2.05 $ < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < < >

5 2018/2019 DESIGN WINTER LOAD REQUIREMENTS SUMMARY FOR DESIGN COLD WEATHER - EARLY SEASON BIAS UNITS ARE MMCF IN PSIA DRY (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m) Exhibit No.: A-4 (JJG-1) Page: 1 of 1 Witness: JJGuscinski SALES & CHOICE TRANSPORT DESIGN NORMAL NORMAL NORMAL NORMAL DESIGN NORMAL NORMAL NORMAL NORMAL NOV/MAR NOV NOV/DEC NOV/JAN NOV/FEB NOV/MAR NOV NOV/DEC NOV/JAN NOV/FEB Line NORMAL EARLY DESIGN DESIGN DESIGN DESIGN NORMAL EARLY DESIGN DESIGN DESIGN DESIGN No. MONTH WEATHER SEASON DEC/MAR JAN/MAR FEB/MAR MAR WEATHER SEASON DEC/MAR JAN/MAR FEB/MAR MAR 1 NOV 22,714 28,179 22,714 22,714 22,714 22,714 7,245 7,934 7,245 7,245 7,245 7,245 2 DEC 35,433 41,181 43,692 35,433 35,433 35,433 8,868 9,593 9,910 8,868 8,868 8,868 3 JAN 42,211 47,572 47,581 51,269 42,211 42,211 9,950 10,626 10,627 11,092 9,950 9,950 4 FEB 36,521 40,589 40,504 41,577 44,432 36,521 9,154 9,667 9,656 9,792 10,152 9,154 5 MAR 29,089 32,663 32,709 32,527 33,236 36,240 8,385 8,836 8,842 8,819 8,908 9, TOTAL 165, , , , , ,120 43,602 46,656 46,280 45,816 45,123 44,504 INCREMENTAL DEGREE DAYS FROM NORMAL NOV-MAR WEATHER SENSITIVITY FACTORS 7 DESIGN NORMAL NORMAL NORMAL NORMAL SALES & CHOICE (MMCF/DD) NOV/MAR NOV NOV/DEC NOV/JAN NOV/FEB END USER (MMCF/DD) NORMAL EARLY DESIGN DESIGN DESIGN DESIGN TOTAL MONTH WEATHER SEASON DEC/MAR JAN/MAR FEB/MAR MAR NOV DEC JAN FEB MAR TOTAL NOTE: NUMBERS MAY NOT ADD DUE TO ROUNDING OFFICIAL GAS DELIVERIES FORECAST, DATED 10/12/2017 4% PROBABILITY LEVEL, DATA, 10/5/2017 NEW PREDICTED DESIGN CITY GATE PEAK DAY LOAD PER DD ANALYSIS (JJG 10/16/2017)

6 MICHIGAN PUBLIC SERVICE COMMISSION 90 PEAK DAY DESIGN COMPARISON TO HISTORICAL DATA Case No.: U Exhibit No.: A-5 (JJG-2) Page 1 of 1 Witness: JJGuscinski Wind Adjusted Weighted Degree Days (Wind Adj = 4 DD) Jan 1-Feb 1-Mar 1-Apr Date

7 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-6 (JJG-3) Page 1 of 1 Witness: JJGuscinski WINTER LOAD ANALYSIS LOAD ADJUSTED FOR WEEKENDS, HOLIDAYS AND RADIATION BASED ON DATA FROM NOVEMBER 1, MARCH 31, Actual Regression 4% Probability = (1.75 St. Deviations) MMCF/DEGREE DAY CITY GATE LOAD (MMCF) (Does not include Electric Generation Load) WIND ADJUSTED WEIGHTED DEGREE DAY 0

8 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-7 (JJG-4) Page: 1 of 2 Witness: JJGuscinski Historical 4% Probability Peak Day Load (MMcf) [Column (f) from JJG-4 page 2] Historical Correlation Analysis y = x + 1, R² = Historical January Weather Adjusted Load (MMcf) [Column (i) from JJG-4 page 2]

9 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-7 (JJG-4) Page: 2 of 2 Witness: JJGuscinski Historical Correlation Analysis Data (Page 1 of Exhibit JJG-4 is the graphical representation of column (i) plotted vs. column (f)) (All Loads are MMcf) (a) (b) (c) (d) (e) (f) (g) (h) (i) Jan. Final Actual Jan. Weather Line Years Winter Regres. 4% Prob. Jan. DD Adjusted No. Prior Period Peak Use / DD St. Dev. Peak Load Dev Load / / / / / / / / / / / / / / /

10 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-8 (JJG-5) Page: 1 of 1 Witness: JJGuscinski Design Peak Day Load Forecast Results (All Loads are MMcf) (a) (b) (c) (d) (e) (f) Forecast Forecast Forecast Forecast GCR, GCC, Elec. Gen. Total System Line Winter January & EU Load Percent Load, Fuel, Peak Day Load No. Period Load * (Step 2) ** Change Use & Loss (Step 3) / % / % / % / % / % / % *Forecast January CG Output includes estimates of fuel use and loss to be consistent with Actuals. ** Results shown are calculated with more significant figures than shown above and in Exhibit A-7 (JJG-4).

11 MICHIGAN PUBLIC SERVICE COMMISSION Incremental Weighted Degree Days (4% Probability, Nov - Mar) Case No.: U Exhibit No.: A-9 (JJG-6) Page 1 of 5 Witness: JJGuscinski Nov-Mar ( Year Ending) Nov-Mar (Rolling 15 Years) Nov-Mar (Rolling 30 Years) Incremental Weighted Degree Days Year Ending

12 900 Incremental Weighted Degree Days (4% Probability, Dec - Mar) Case No.: U Exhibit No.: A-9 (JJG-6) Page 2 of 5 Witness: JJGuscinski Incremental Weighted Degree Days Year Ending

13 Incremental Weighted Degree Days (4% Probability, Jan - Mar) Case No.: U Exhibit No.: A-9 (JJG-6) Page 3 of 5 Witness: JJGuscinski Incremental Weighted Degree Days Year Ending

14 Incremental Weighted Degree Days (4% Probability, Feb - Mar) Case No.: U Exhibit No.: A-9 (JJG-6) Page 4 of 5 Witness: JJGuscinski Incremental Weighted Degree Days Year Ending

15 350 Incremental Weighted Degree Days (4% Probability, March) Case No.: U Exhibit No.: A-9 (JJG-6) Page 5 of 5 Witness: JJGuscinski Incremental Weighted Degree Days Year Ending

16 Exhibit No.: A-10 (JJG-7) Page: 1 of 1 Witness: JJGuscinski Line (a) (b) No. Month Normal DD 1 April May June July August September October Subtotal Summer 1, November December 1, January 1, February 1, March Subtotal Winter 4, Total 6, * Weighted 32% Lansing, 68% Detroit Metro NORMAL DAILY WEIGHTED DEGREE DAYS 15-YEAR AVERAGE THROUGH 4/2017*

17 Exhibit No.: A-11 (JJG-8) Page: 1 of 1 Witness: JJGuscinski Storage Capacity Capacity Storage Field / Group (Bcf) Muskegon River 37.3 Ira 5.2 Lenox 2.4 Puttygut 12.5 Ray 57.4 Four Corners / Swan Creek 3.8 Hessen 14.8 Overisel / Salem 76.1 Northville 2.4 Total (1) Recoverable Base Gas Maximum Working Capacity Estimated Max. Forecasted Cyclic Capability 125 Storage Utilization Forecast Summary (4) Consumers Energy GCR 18/19 Storage Capacity and Forecasted Utilization Summary Cyclic Volume Market / Customer Group (Bcf) GCR & GCC Customers Transport Users 3-4 MCV 3-5 Buy/Sell 4 (3) Total (2) (1) Includes 62.7 Bcf of recoverable base gas (2) This information is based on specific scenarios and data input assumptions. Numbers will vary when assumptions change and actual data become available. (3) Buy/Sell volume represents gas currently under contract, no additional volume is assumed due to uncertainty in various system constraints and natural gas market conditions. (4) For additional details, see Exhibit A-12 (JJG-9).

18 Exhibit No.: A-12 (JJG-9) Page: 1 of 1 Witness: JJGuscinski GCR 18/19 FORECASTED STORAGE UTILIZATION RESULTS VOLUMES IN DRY Line No. (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (c) - (h) Scenario No. Cold Weather Scenario Storage Field Type (2) End of Month Total Storage Inventory (1) Cyclic Oct-18 Nov-18 Dec-18 Jan-19 Feb-19 Mar DESIGN COLD NOV-MAR (Sendout Model) 2 Base Load Total 128, ,424 81,832 75,543 60,582 51,872 76,140 3 Peaker Total 66,762 66,762 65,307 38,432 25,685 17,702 49,060 4 Total Inventory 194, , , ,975 86,267 69, ,200 5 Total Non-GCR/GCC 19,174 15,792 13,013 9,951 7,156 5,563 13,611 6 Total GCR/GCC Inventory 175, , , ,024 79,111 64, ,589 7 Total GCC 14,928 14,934 12,473 7,957 3, ,355 8 Total GCR Inventory 160, , ,653 96,067 75,529 63,438 97,234 Cyclic Diff from Design N-M 9 2 NORMAL NOV, DESIGN COLD DEC-MAR (Sendout Model) 10 Base Load Total 128, ,963 84,037 75,464 60,534 51,872 76, Peaker Total 66,762 66,762 62,779 38,277 25,705 17,702 49, Total 194, , , ,740 86,239 69, , Total Non-GCR/GCC 19,174 15,815 13,109 10,173 7,498 5,980 13, Total GCR/GCC Inventory 175, , , ,567 78,741 63, , Total GCC 14,928 15,360 12,789 8,040 3, , Total GCR Inventory 160, , ,918 95,527 75,068 62,928 97, NORMAL NOV-DEC, DESIGN COLD JAN-MAR (Sendout Model) 18 Base Load Total 128, ,963 88,842 74,872 60,064 51,872 76, Peaker Total 66,762 66,762 66,364 39,519 25,897 17,702 49, Total 194, , , ,392 85,961 69, , Total Non-GCR/GCC 19,174 15,844 13,230 10,451 7,922 6,495 12, Total GCR/GCC Inventory 175, , , ,941 78,039 63, , Total GCC 14,928 15,360 13,526 8,830 4, , Total GCR Inventory 160, , ,450 95,110 73,992 62,119 98,553 1, NORMAL NOV-JAN, DESIGN COLD FEB-MAR (Sendout Model) 26 Base Load Total 128, ,963 88,842 68,278 55,995 51,872 76, Peaker Total 66,762 66,762 66,364 55,349 31,405 17,702 49, Total 194, , , ,628 87,400 69, , Total Non-GCR/GCC 19,174 15,887 13,410 10,864 8,554 7,264 11,910-1, Total GCR/GCC Inventory 175, , , ,764 78,846 62, ,290 1, Total GCC 14,928 15,360 13,526 9,668 5,095 1,684 13,244-1, Total GCR Inventory 160, , , ,095 73,752 60, ,046 2, NORMAL NOV-FEB, DESIGN COLD MAR (Sendout Model) 34 Base Load Total 128, ,963 88,842 68,278 57,084 51,872 76, Peaker Total 66,762 66,762 66,364 55,349 38,449 18,745 48,017-1, Total 194, , , ,628 95,533 70, ,157-1, Total Non-GCR/GCC 19,174 15,925 13,571 11,233 9,118 7,950 11,224-2, Total GCR/GCC Inventory 175, , , ,395 86,415 62, ,933 1, Total GCC 14,928 15,360 13,526 9,668 5,785 2,455 12,473-1, Total GCR Inventory 160, , , ,726 80,631 60, ,460 3, NORMAL NOV-MAR (Cost of Gas Model) 42 Total 194, , , ,715 96,854 79, ,520-9, Total Non-GCR/GCC 19,174 15,980 13,804 11,771 9,939 8,949 10,225-3, Total GCR/GCC Inventory 175, , , ,944 86,915 70, ,295-6, Total GCC 14,928 15,360 13,526 9,668 5,785 3,105 11,823-2, Total GCR Inventory 160, , , ,276 81,130 67,200 93,472-3, (1) Total storage inventory includes GCR, GCC, End Users, MCV, Buy/Sells, and recoverable base gas transfer of 62.7 Bcf. 48 (2) Base load fields include: Winterfield, Cranberry, Riverside, Overisel, Salem, Hessen, Puttygut, Four Corners, and Swan Creek. 49 Peaker fields include: Ray, Ira, Lenox, Northville Reef, Lyon 34, and Lyon (3) This information is based on specific scenarios and data input assumptions. Numbers will vary when assumptions change and actual data become available.

19 Exhibit No.: A-13 (JJJ-1) Page: 1 of 1 Witness: JJJudy Summary of Consumers Energy Gas Interventions 2017 Date of Line Docket Party Subject Date of Consumers' Intervention FERC Order or Final Action 1 RP ANR Pipeline Company Compliance filing pursuant to ANR Settlement and Settlement Offer in compliance with RP Order 1/24/2017 2/3/ RP Trunkline Gas Company, LLC Compliance filing for Cost and Revenue Study in compliance with CP Order 2/14/2017 4/26/ RP Panhandle Eastern Pipe Line Company, LP Annual Fuel Reimbursement Adjustment filing 3/7/2017 3/28/ RP ANR Pipeline Company Annual Transporter's Use Percentage Redetermination 3/8/2017 3/21/ RP Trunkline Gas Company, LLC Annual Fuel Reimbursement Adjustment filing 3/8/2017 3/29/ RP Trunkline Gas Company, LLC Tariff revisions to provide reservation charge credits when firm service is interrupted 3/8/2017 3/29/ RP Panhandle Eastern Pipe Line Company, LP Flow Through of Penalty Revenues Report filed on /21/2017 Open 8 RP Panhandle Eastern Pipe Line Company, LP Flow Through of Cash Out Revenues filed on /24/2017 Open 9 RP Great Lakes Gas Transmission, LP Semi-Annual Transporter's Use Report for the period 1/1/17 through 6/30/17 8/10/2017 Open 10 RP ET Rover Pipeline, LLC Notices of commencement of partial service for ET Rover backhaul project 9/18/ /22/ RP ET Rover Pipeline, LLC Notices of commencement of partial service for ET Rover backhaul project 9/18/ /22/ RP Panhandle Eastern Pipe Line Company Notices of commencement of partial service for Panhandle backhaul project 9/18/2017 6/30/ RP Panhandle Eastern Pipe Line Company Notices of commencement of partial service for Panhandle backhaul project 9/18/2017 6/30/ RP Trunkline Gas Company, LLC Notices of commencement of partial service for Trunkline backhaul project 9/18/2017 6/30/ RP Trunkline Gas Company, LLC Notices of commencement of partial service for Trunkline backhaul project 9/18/2017 6/30/ RP Trunkline Gas Company, LLC Annual Fuel Reimbursement Adjustment filing 10/5/ /30/ RP Panhandle Eastern Pipe Line Company, LP Annual Fuel Reimbursement Adjustment filing 10/5/ /18/2017

20 Exhibit No.: A-14 (EJK-1) Calendar Month Gas Sales Forecast Page: 1 of 1 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line Inter- No. Year Month Residential Commercial Industrial Departmental Total Apr 11,708 4, , May 6,319 1, , Jun 3,157 1, , Jul 2,925 1, , Aug 2,704 1, , Sep 4,030 1, , Oct 9,894 3, , Nov 16,784 5, , Dec 25,341 8,498 1, , Jan 30,287 10,139 1, , Feb 26,474 8,349 1, , Mar 20,831 6,939 1, , Total 160,454 54,331 9, ,408

21 Exhibit No.: A-15 (EJK-2) Comparison to Prior GCR Plan Gas Sales Forecast Page: 1 of 1 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) Line Current Prior Percent No. Year Month U U Difference Difference Apr 17,283 17, % May 8,458 8, % Jun 4,515 4, % Jul 4,401 4, % Aug 4,077 4, % Sep 6,005 5, % Oct 13,698 13, % Nov 22,714 22, % Dec 35,433 36, % Jan 42,211 39,964 2, % Feb 36,521 34,887 1, % Mar 29,089 29, % 13 Total 224, ,535 3, %

22 Exhibit No.: A-16 (EJK-3) Five-year Calendar Month Gas Sales Forecast Page: 1 of 1 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line No. Month 2018/ / / / /23 1 Apr 17,283 17,198 17,170 17,254 17,270 2 May 8,458 8,490 8,501 8,572 8,607 3 Jun 4,515 4,562 4,596 4,662 4,710 4 Jul 4,401 4,460 4,498 4,565 4,610 5 Aug 4,077 4,138 4,182 4,250 4,302 6 Sep 6,005 6,065 6,096 6,169 6,212 7 Oct 13,698 13,767 13,786 13,867 13,900 8 Nov 22,714 22,778 22,750 22,850 22,853 9 Dec 35,433 35,457 35,371 35,489 35, Jan 42,211 42,077 42,213 42,192 42, Feb 36,521 36,423 36,538 36,513 36, Mar 29,089 29,024 29,123 29,113 29, Total 224, , , , , YOY %Δ 0.0% 0.2% 0.3% 0.2% 15 Prior Outlook ( 1 ) 220, , , , %Δ from Prior 1.8% 1.4% 1.0% 0.7% Note ( 1 ) Exhibit A-24 (EJK-3), Case No. U-18151

23 Exhibit No.: A-17 (EJK-4) Comparison to 11-Year Allocation Method Page: 1 of 1 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) Line 11-Year Percent No. Year Month Forecast Average Difference Difference Apr 17,283 16,228 1, % May 8,458 8, % Jun 4,515 5, % Jul 4,401 4, % Aug 4,077 4, % Sep 6,005 5, % Oct 13,698 13, % Nov 22,714 23, % Dec 35,433 36,629-1, % Jan 42,211 42, % Feb 36,521 35,471 1, % Mar 29,089 28, % 13 Total 224, , % 14 Apr - Oct 58,439 58, % 15 Nov - Mar 165, , % 16 Total 224, , % Note WN - Weather Normalized

24 Exhibit No.: A-18 (EJK-5) Calculation of 11-Year Calendar Month Gas Sales Allocator Page: 1 of 1 (MMcf) Witness: EJKeaton (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) Line 11-Year No. Month Average 1 Jan 42,552 43,295 42,421 40,341 40,910 40,144 39,907 41,417 40,135 40,482 42,266 41,261 2 Feb 36,304 37,270 36,154 34,662 32,778 32,547 33,786 33,914 31,488 35,403 38,388 34,790 3 Mar 29,145 30,623 28,933 28,146 25,041 27,596 26,383 28,498 27,294 28,041 29,360 28,096 4 Apr 15,710 17,995 16,723 16,306 13,471 17,570 14,656 14,385 16,765 15,469 16,348 15,945 5 May 8,554 8,210 7,742 7,325 9,151 8,876 6,647 8,026 8,341 9,565 9,165 8,327 6 Jun 5,185 4,355 6,031 5,516 4,604 4,456 5,426 5,301 5,978 5,286 4,457 5,145 7 Jul 5,023 4,736 4,094 4,676 4,861 5,197 4,152 4,517 4,737 4,173 3,878 4,549 8 Aug 4,841 5,000 5,997 5,091 3,816 3,886 4,271 4,417 4,231 4,477 3,796 4,529 9 Sep 4,763 4,903 4,061 5,413 5,902 5,398 5,675 5,509 5,691 5,496 6,571 5, Oct 15,745 13,122 13,454 13,458 12,389 13,265 13,891 12,993 12,662 13,043 12,508 13, Nov 23,766 23,977 23,640 21,807 22,385 22,484 21,769 23,815 23,478 23,598 23,077 23, Dec 38,008 36,908 38,953 34,819 35,834 34,666 34,544 34,956 36,216 37,250 33,736 35, Total 229, , , , , , , , , , , , Jan 18.5% 18.8% 18.6% 18.5% 19.4% 18.6% 18.9% 19.0% 18.5% 18.2% 18.9% 18.7% 15 Feb 15.8% 16.2% 15.8% 15.9% 15.5% 15.1% 16.0% 15.6% 14.5% 15.9% 17.2% 15.8% 16 Mar 12.7% 13.3% 12.7% 12.9% 11.9% 12.8% 12.5% 13.1% 12.6% 12.6% 13.1% 12.7% 17 Apr 6.8% 7.8% 7.3% 7.5% 6.4% 8.1% 6.9% 6.6% 7.7% 7.0% 7.3% 7.2% 18 May 3.7% 3.6% 3.4% 3.4% 4.3% 4.1% 3.1% 3.7% 3.8% 4.3% 4.1% 3.8% 19 Jun 2.3% 1.9% 2.6% 2.5% 2.2% 2.1% 2.6% 2.4% 2.8% 2.4% 2.0% 2.3% 20 Jul 2.2% 2.1% 1.8% 2.1% 2.3% 2.4% 2.0% 2.1% 2.2% 1.9% 1.7% 2.1% 21 Aug 2.1% 2.2% 2.6% 2.3% 1.8% 1.8% 2.0% 2.0% 1.9% 2.0% 1.7% 2.1% 22 Sep 2.1% 2.1% 1.8% 2.5% 2.8% 2.5% 2.7% 2.5% 2.6% 2.5% 2.9% 2.4% 23 Oct 6.9% 5.7% 5.9% 6.2% 5.9% 6.1% 6.6% 6.0% 5.8% 5.9% 5.6% 6.0% 24 Nov 10.4% 10.4% 10.4% 10.0% 10.6% 10.4% 10.3% 10.9% 10.8% 10.6% 10.3% 10.5% 25 Dec 16.6% 16.0% 17.1% 16.0% 17.0% 16.0% 16.4% 16.1% 16.7% 16.8% 15.1% 16.3% 26 Total 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0% 100.0%

25 Exhibit No. : A-19 (EJK-6) Calendar Month Gas Transportation Forecast Page: 1 of 1 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line Inter- No. Year Month Residential Commercial Industrial Departmental Total Apr 114 2,072 3, , May 64 1,654 3, , Jun 37 1,253 3, , Jul 34 1,260 3, , Aug 37 1,233 3, , Sep 41 1,247 3, , Oct 87 1,755 4, , Nov 136 2,421 4, , Dec 201 3,239 5, , Jan 228 3,676 6, , Feb 208 3,203 5, , Mar 171 2,904 5, , Total 1,358 25,917 51, ,841

26 Exhibit No.: A-20 (EJK-7) Five-Year Calendar Month Gas Transportation Forecast Page: 1 of 1 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line No. Month 2018/ / / / /23 1 Apr 6,123 6,184 6,225 6,244 6,246 2 May 5,068 5,129 5,172 5,193 5,200 3 Jun 4,491 4,561 4,607 4,630 4,642 4 Jul 4,370 4,438 4,480 4,497 4,508 5 Aug 4,456 4,518 4,556 4,572 4,582 6 Sep 4,606 4,671 4,709 4,726 4,737 7 Oct 6,125 6,175 6,197 6,202 6,205 8 Nov 7,245 7,282 7,295 7,295 7,293 9 Dec 8,868 8,899 8,915 8,912 8, Jan 9,950 9,970 9,977 9,965 9, Feb 9,154 9,181 9,187 9,176 8, Mar 8,385 8,412 8,422 8,416 8, Total 78,841 79,420 79,742 79,828 79, YOY %Δ 0.7% 0.4% 0.1% -1.0% 15 Prior Outlook ( 1 ) 81,978 82,977 83,875 84, %Δ from Prior -3.8% -4.3% -4.9% -5.4% Note ( 1 ) Exhibit A-28 (EJK-7), Case No. U-18151

27 Exhibit No.: A-21 (EJK-8) Five-Year Cycle Month Gas Sales Forecast Page: 1 of 3 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line Inter- No. Year Month Residential Commercial Industrial Departmental Total Jan 29,321 9,743 1, , Feb 28,374 9,133 1, , Mar 24,671 8,089 1, , Apr 17,370 6,473 1, , May 9,520 3, , Jun 5,027 1, , Jul 3,051 1, , Aug 2,691 1, , Sep 2,900 1, , Oct 5,053 1, , Nov 11,589 3, , Dec 21,026 6,904 1, , Total 160,594 54,344 9, , Jan 29,266 9,732 1, , Feb 28,334 9,127 1, , Mar 24,636 8,092 1, , Apr 17,337 6,389 1, , May 9,498 3, , Jun 5,018 1, , Jul 3,045 1, , Aug 2,686 1, , Sep 2,894 1, , Oct 5,045 1, , Nov 11,569 3, , Dec 20,979 6,910 1, , Total 160,309 54,568 9, ,505

28 Exhibit No.: A-21 (EJK-8) Five-Year Cycle Month Gas Sales Forecast Page: 2 of 3 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line Inter- No. Year Month Residential Commercial Industrial Departmental Total Jan 29,235 9,727 1, , Feb 28,319 9,129 1, , Mar 24,625 8,102 1, , Apr 17,324 6,413 1, , May 9,489 3, , Jun 5,014 1, , Jul 3,042 1, , Aug 2,684 1, , Sep 2,891 1, , Oct 5,039 1, , Nov 11,555 3, , Dec 20,955 6,926 1, , Total 160,173 54,955 9, , Jan 29,267 9,747 1, , Feb 28,344 9,148 1, , Mar 24,648 8,125 1, , Apr 17,340 6,447 1, , May 9,496 3, , Jun 5,019 1, , Jul 3,047 1, , Aug 2,687 1, , Sep 2,895 1, , Oct 5,044 1, , Nov 11,565 3, , Dec 20,976 6,956 1, , Total 160,329 55,440 9, ,316

29 Exhibit No.: A-21 (EJK-8) Five-Year Cycle Month Gas Sales Forecast Page: 3 of 3 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line Inter- No. Year Month Residential Commercial Industrial Departmental Total Jan 29,317 9,773 1, , Feb 28,386 9,170 1, , Mar 24,677 8,154 1, , Apr 17,361 6,482 1, , May 9,510 3, , Jun 5,026 1, , Jul 3,051 1, , Aug 2,692 1, , Sep 2,899 1, , Oct 5,051 1, , Nov 11,578 3, , Dec 20,999 6,986 1, , Total 160,548 55,946 9, , Jan 29,342 9,792 1, , Feb 28,404 9,187 1, , Mar 24,688 8,169 1, , Apr 17,366 6,512 1, , May 9,516 3, , Jun 5,029 2, , Jul 3,054 1, , Aug 2,694 1, , Sep 2,902 1, , Oct 5,054 2, , Nov 11,583 3, , Dec 21,007 7,012 1, , Total 160,640 56,407 9, ,473

30 Exhibit No.: A-22 (EJK-9) Five-Year Cycle Month Gas Transportation Forecast Page: 1 of 3 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line Inter- No. Year Month Residential Commercial Industrial Departmental Total Jan 202 3,234 5, , Feb 229 3,699 5, , Mar 210 3,198 5, , Apr 173 2,897 5, , May 114 2,072 3, , Jun 64 1,654 3, , Jul 37 1,253 3, , Aug 34 1,260 3, , Sep 37 1,233 3, , Oct 41 1,247 3, , Nov 87 1,755 4, , Dec 136 2,421 4, , Total 1,364 25,923 51, , Jan 201 3,239 5, , Feb 228 3,676 6, , Mar 208 3,203 5, , Apr 171 2,904 5, , May 113 2,085 3, , Jun 64 1,671 3, , Jul 37 1,272 3, , Aug 34 1,280 3, , Sep 36 1,253 3, , Oct 41 1,267 3, , Nov 87 1,771 4, , Dec 135 2,431 4, , Total 1,355 26,052 51, ,315

31 Exhibit No.: A-22 (EJK-9) Five-Year Cycle Month Gas Transportation Forecast Page: 2 of 3 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line Inter- No. Year Month Residential Commercial Industrial Departmental Total Jan 199 3,247 5, , Feb 226 3,682 6, , Mar 207 3,213 5, , Apr 170 2,915 5, , May 112 2,102 4, , Jun 63 1,689 3, , Jul 37 1,293 3, , Aug 34 1,301 3, , Sep 36 1,275 3, , Oct 41 1,287 3, , Nov 86 1,788 4, , Dec 134 2,444 4, , Total 1,345 26,236 52, , Jan 198 3,261 5, , Feb 225 3,695 6, , Mar 206 3,228 5, , Apr 169 2,932 5, , May 112 2,121 4, , Jun 63 1,711 3, , Jul 36 1,316 3, , Aug 34 1,324 3, , Sep 36 1,298 3, , Oct 40 1,310 3, , Nov 85 1,808 4, , Dec 134 2,462 4, , Total 1,338 26,466 51, ,860

32 Exhibit No.: A-22 (EJK-9) Five-Year Cycle Month Gas Transportation Forecast Page: 3 of 3 (MMcf) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line Inter- No. Year Month Residential Commercial Industrial Departmental Total Jan 197 3,279 5, , Feb 224 3,710 6, , Mar 205 3,244 5, , Apr 168 2,950 5, , May 111 2,142 3, , Jun 63 1,734 3, , Jul 36 1,341 3, , Aug 33 1,349 3, , Sep 36 1,323 3, , Oct 40 1,335 3, , Nov 85 1,831 4, , Dec 133 2,482 4, , Total 1,331 26,720 51, , Jan 196 3,147 5, , Feb 223 3,476 5, , Mar 204 3,094 5, , Apr 167 2,768 5, , May 111 2,047 3, , Jun 62 1,575 3, , Jul 36 1,317 3, , Aug 33 1,275 3, , Sep 36 1,282 3, , Oct 40 1,360 3, , Nov 85 1,854 4, , Dec 132 2,504 4, , Total 1,325 25,700 51, ,603

33 MICHIGAN PUBLIC SERVICE COMMISSION Case No. : U Exhibit No.: A-23 (EJK-10) Five-Year Total Gas Customer Count Forecast Page: 1 of 3 (Bills) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line Inter- No. Year Month Residential Commercial Industrial Departmental Total Jan 1,638, ,811 5, ,771, Feb 1,638, ,223 5, ,770, Mar 1,640, ,225 5, ,773, Apr 1,635, ,871 5, ,767, May 1,637, ,759 5, ,770, Jun 1,636, ,406 5, ,768, Jul 1,635, ,832 5, ,766, Aug 1,634, ,743 5, ,765, Sep 1,638, ,688 5, ,769, Oct 1,636, ,634 5, ,768, Nov 1,646, ,903 5, ,778, Dec 1,654, ,607 5, ,786, Average 1,639, ,392 5, ,771, Jan 1,647, ,079 5, ,778, Feb 1,646, ,308 5, ,778, Mar 1,649, ,296 5, ,780, Apr 1,643, ,073 5, ,775, May 1,646, ,996 5, ,777, Jun 1,644, ,776 5, ,775, Jul 1,643, ,427 5, ,774, Aug 1,642, ,366 5, ,773, Sep 1,646, ,328 5, ,777, Oct 1,645, ,290 5, ,776, Nov 1,655, ,445 5, ,786, Dec 1,662, ,858 5, ,794, Average 1,647, ,770 5, ,779,159

34 Exhibit No.: A-23 (EJK-10) Five-Year Total Gas Customer Count Forecast Page: 2 of 3 (Bills) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line Inter- No. Year Month Residential Commercial Industrial Departmental Total Jan 1,655, ,542 5, ,786, Feb 1,654, ,675 5, ,786, Mar 1,657, ,666 5, ,788, Apr 1,652, ,533 5, ,783, May 1,654, ,486 5, ,785, Jun 1,652, ,356 5, ,783, Jul 1,652, ,150 5, ,782, Aug 1,651, ,114 5, ,781, Sep 1,654, ,093 5, ,785, Oct 1,653, ,072 5, ,784, Nov 1,663, ,166 5, ,794, Dec 1,671, ,414 5, ,802, Average 1,656, ,355 5, ,787, Jan 1,663, ,229 5, ,794, Feb 1,663, ,311 5, ,794, Mar 1,665, ,310 5, ,796, Apr 1,660, ,234 5, ,791, May 1,663, ,210 5, ,793, Jun 1,661, ,138 5, ,791, Jul 1,660, ,020 5, ,791, Aug 1,659, ,003 5, ,790, Sep 1,663, ,995 5, ,793, Oct 1,662, ,988 5, ,792, Nov 1,671, ,049 5, ,802, Dec 1,679, ,201 5, ,810, Average 1,664, ,141 5, ,795,329

35 Exhibit No.: A-23 (EJK-10) Five-Year Total Gas Customer Count Forecast Page: 3 of 3 (Bills) Witness: EJKeaton ( a ) ( b ) ( c ) ( d ) ( e ) Line Inter- No. Year Month Residential Commercial Industrial Departmental Total Jan 1,672, ,097 5, ,803, Feb 1,671, ,152 5, ,802, Mar 1,674, ,163 5, ,804, Apr 1,668, ,118 5, ,799, May 1,671, ,110 5, ,802, Jun 1,669, ,073 5, ,800, Jul 1,668, ,009 5, ,799, Aug 1,667, ,006 5, ,798, Sep 1,671, ,008 5, ,802, Oct 1,670, ,010 5, ,801, Nov 1,680, ,053 5, ,810, Dec 1,687, ,150 5, ,818, Average 1,672, ,079 5, ,803, Jan 1,680, ,096 5, ,811, Feb 1,679, ,135 5, ,810, Mar 1,682, ,148 5, ,813, Apr 1,676, ,129 5, ,807, May 1,679, ,131 5, ,810, Jun 1,677, ,117 5, ,808, Jul 1,676, ,086 5, ,807, Aug 1,675, ,092 5, ,806, Sep 1,679, ,100 5, ,810, Oct 1,678, ,109 5, ,809, Nov 1,688, ,142 5, ,818, Dec 1,695, ,207 5, ,826, Average 1,680, ,124 5, ,811,644

36 MICHIGAN PUBLIC SERVICE COMMISSION Case No. : U Exhibit No.: A-24 (EJK-11) Regression Model Results & Major Forecast Assumptions Page: 1 of 2 (MMcf) Witness: EJKeaton Coefficient t-stat p-value Coefficient t-stat p-value Residential Sales Average Usage Commercial Sales Customer Count HDD % Population % Bill Days % ComSlsCustLag(12) % HDD % AR(1) % Bill Days % 2 R a ResSlsUseLag(12) % MAPE 0.34% AR(1) % 2 R a Commercial Transportation Customer Count MAPE 3.61% ComTrnCustLag(1) % 2 R a Residential Transportation Average Usage MAPE 0.78% HDD % Bill Days % Industrial Sales Consumption AR(1) % HDD % 2 R a MfgEmployment % MAPE 10.32% AR(1) % 2 R a Residential Sales Customer Count MAPE 7.27% Housing Starts % ResCustLag(12) % Industrial Transportation Consumption AR(1) % HDD % 2 R a Employment Weighted Prod % MAPE 0.14% AR(1) % 2 R a Residential Transportation Customer Count MAPE 6.80% Exponential Smooth % 2 R a Industrial Sales Customer Count MAPE 1.88% Exponential Smooth % 2 R a Commercial Sales Consumption MAPE 0.44% HDD % Service Production % Industrial Transportation Customer Count AR(1) % Exponential Smooth % 2 R a R a MAPE 4.24% MAPE 0.73% Commercial Transportation Consumption Feb2007 Binary % HDD % ComTrnCust % AR(1) % 2 R a MAPE 6.20%

37 Exhibit No.: A-24 (EJK-11) Regression Model Results & Major Forecast Assumptions Page: 2 of 2 (MMcf) Witness: EJKeaton Description Residential Sales Forecast Cycle Sales 163, , , , , ,303 Energy Efficiency -2,638-3,858-4,931-5,717-6,427-7,242 CAP Program ,015 Model Calibration Adjustment Adjusted Cycle Sales 160, , , , , ,640 Unbilled Calendar Sales 159, , , , , ,796 Commercial Sales Forecast Cycle Sales 53,769 54,499 55,241 55,989 56,740 57,483 Energy Efficiency ,292-1,649-1,913-2,160-2,444 Model Calibration Adjustment 1,460 1,361 1,363 1,364 1,366 1,368 Adjusted Cycle Sales 54,344 54,568 54,955 55,440 55,946 56,407 Unbilled Calendar Sales 54,742 54,637 54,912 55,510 55,903 56,477 Industrial Sales Forecast Cycle Sales 9,727 9,842 9,921 9,963 9,987 10,004 Energy Efficiency Model Calibration Adjustment Adjusted Cycle Sales 9,516 9,518 9,495 9,454 9,400 9,332 Unbilled Calendar Sales 9,628 9,526 9,480 9,458 9,383 9,335 Interdepartmental Sales Forecast Cycle Sales Energy Efficiency Model Calibration Adjustment Adjusted Cycle Sales Unbilled Calendar Sales Weather Indicators HDD60 Cycle Month 5,373 5,373 5,373 5,373 5,373 5,373 HDD55 Cycle Month 4,254 4,254 4,254 4,254 4,254 4,254 Michigan Economic Indicators Housing Starts (Thousands) Employment (Mfg) (Thousands) Industrial Production Index

38 Exhibit No.: A-25 (MHR-1) Page: 1 of 2 Witness: MHRoss CONSUMERS ENERGY GAS PURCHASING STRATEGY GUIDELINES Consumers Energy s Gas Supply Department is responsible for securing adequate gas supplies to meet the needs of the Company s customers. It is responsible for securing needed supplies in a manner that satisfies operational and obligation-to-serve requirements at prudent and reasonable prices. The following guidelines represent the Company s Gas Purchasing Strategy. Consumers Energy s underlying strategy for purchasing its gas supply consists of the use of a combination of index based price purchases and fixed price purchases. Gas purchased during the GCR Year will be purchased at index based prices unless fixed price purchases are triggered pursuant to the Quartile Fixed Price Triggers guideline contained within these Gas Purchasing Strategy guidelines. The Quartile Fixed Price Triggers guideline involves purchasing gas at a fixed price if the market price of gas is below certain historical price ranges. If prices are not below the historical quartile price ranges then index related purchases will be made to meet projected requirements. 1. Quartile Fixed Price Triggers Guideline Quartile Fixed Price Triggers is a method of fixing the price of gas on a portion of Consumers annual supply requirements if the current market price is below certain historical price ranges or quartiles. Specifically, upon settlement on the last trading day for each monthly NYMEX natural gas contract, Consumers will determine the average of the settlement prices for the NYMEX contract that has settled for the current month plus the next consecutive eleven monthly settled NYMEX contracts. This 12 month average strip price will be summarized along with the comparable 12 month average strip prices for the previous 35 months. All 36 prices will be sorted from lowest to highest and grouped into four quartiles. If the current market price of gas falls below the First Quartile, Consumers would then implement measures to fix prices on a portion of its supply requirement for the balance of the current GCR Plan year and the next GCR Plan year. (a) If the average of the NYMEX natural gas contracts for the current remaining portion of the current GCR period (balance of the GCR year) falls below the First Quartile, Consumers would then fix the price of up to 10% of the total estimated supply required for the balance of the current year which is not yet under fixed price contract, subject to an annual GCR period fixed price cap of 60%. (b) If the average of the 12 NYMEX natural gas contracts for the second GCR period (April through March) falls below the First Quartile, Consumers would then fix the price of up to 5% of the total estimated annual supply requirement for the

39 Exhibit No.: A-25 (MHR-1) Page: 2 of 2 Witness: MHRoss applicable period which is not yet under fixed price contract subject to an annual GCR period fixed price cap of 40%. Monthly fixed price caps will be determined based upon estimated supply requirements which are not yet under fixed price contract at the time fixed price purchase requirements are calculated and annual price caps will be based upon estimated annual supply requirements at the time fixed price purchase requirements are calculated. 2. Summary The following chart summarizes the fixed price percentage monthly and annual caps. Fixed Price Percentage Caps Current Second GCR GCR Quartile Year Year Monthly Caps <1 Quartile 10% 5% Annual Caps <1 Quartile 60% 40% It is the responsibility of the Vice President of Gas Engineering and Supply to exercise discretion in administering these guidelines.

40 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-26 (MHR-2) Page 1 of 2 Witness: MHRoss NYMEX Prices GCR Period 2018, 2019, and 2020 $8.00 $7.00 $6.00 $5.00 $4.00 $3.00 $2.00 1/3/2011 1/3/2012 1/3/2013 1/3/2014 1/3/2015 1/3/2016 1/3/2017 GCR 18/19 NG Strip GCR 19/20 NG Strip GCR 20/21 NG Strip As of 12/12/2017 $2.78 $2.78 $2.80 Low gas costs realized by buying below first quartile.

41 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-26 (MHR-2) Page 2 of 2 Witness: MHRoss AVERAGE COST OF GCR GAS SOLD ($/MCF) $10 0% $/Mcf $9 $8 $7 $6 $5 $4 $3 $2 $ % -20% -26% -35% $7.23 $6.76 $6.20 $ % -47% $5.02 $ % -64% -63% -65% -67% -68% -68% -10% -20% -30% -40% -50% -60% -70% -80% % Change since 08/09 $1 $3.23 $3.04 $3.12 $2.95 $2.76 $2.73 $ % $0-100%

42 MICHIGAN PUBLIC SERVICE COMMISSION NYMEX NATURAL GAS CONTRACTS 12 Month Forward Strips on Contract Close Quartile Ranges & Strip Price Case No.: U Exhibit No.: A-27 (MHR-3) Page 1 of 1 Witness: MHRoss

43 MICHIGAN PUBLIC SERVICE COMMISSION GCR 2018/2019 REQUIREMENTS, SUPPLIES, AND COST OF GAS Case No.: U Exhibit No.: A-28 (MHR-4) Page: 1 of 5 Witness: MHRoss Line Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast No. Beg Bal Apr-18 May-18 Jun-18 Jul-18 Aug-18 Sep-18 Oct-18 Nov-18 Dec-18 Jan-19 Feb-19 Mar-19 Total REQUIREMENTS, MMCF 1 CALENDAR SALES 17,283 8,458 4,515 4,401 4,077 6,005 13,698 22,714 35,433 42,211 36,521 29, ,408 2 SYSTEM LOSS / (GAIN) ,998 3 GAS SOLD VOLUME 17,591 8,609 4,596 4,480 4,150 6,112 13,943 23,119 36,065 42,962 37,171 29, ,406 4 SALES - GCC 4,676 2,459 1, ,277 2,835 5,187 7,186 6,870 5,964 40,121 5 SALES - GCR 12,915 6,150 3,284 3,648 3,411 5,327 12,666 20,284 30,878 35,776 30,302 23, ,284 6 USES FIRM TRANSPORTATION FUEL ,026 8 TOTAL REQUIREMENTS 13,001 6,245 3,341 3,778 3,554 5,504 12,806 20,248 30,953 35,913 30,340 23, ,341 9 FIXED PRICE CONTRACTS (net) 10 FIXED PRICE CONTRACTS (%) 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 11 INDEX PRICED CONTRACTS (net) 6,849 7,077 6,849 7,077 7,077 5,401 5, , INDEX PRICED CONTRACTS (%) 30.4% 33.8% 33.8% 33.8% 33.8% 26.6% 40.0% 0.0% 0.0% 0.0% 0.0% 0.0% 24.5% 13 TOTAL CONTRACTS % 30.4% 33.8% 33.8% 33.8% 33.8% 26.6% 40.0% 0.0% 0.0% 0.0% 0.0% 0.0% 24.5% 14 Fixed Coverage Volume 15 Fixed Coverage (%) 0.0% 16 Fixed Winter Coverage Volume Winter Fixed Coverage (%) 0.0% 18 Fixed Summer Coverage Volume 19 Summer Fixed Coverage (%) 0.0% 20 NOT UNDER CONTRACT 15,651 13,884 13,436 13,884 13,884 14,884 8,369 9,132 9,829 10,560 8,135 9, , TOTAL PURCHASES 22,500 20,961 20,285 20,961 20,961 20,285 13,950 9,132 9,829 10,560 8,135 9, , Average Mo Purchases (MMCFD) Imbalance Gas 24 TOTAL GCR PURCH & PROD 22,500 20,961 20,285 20,961 20,961 20,285 13,950 9,132 9,829 10,560 8,135 9, , NET STORAGE - GCR -9,598-14,818-17,043-17,285-17,509-14,880-1,246 11,052 21,057 25,288 22,145 13,930 1, FT TRANSPORTATION FUEL (F'cast only) , TOTAL SUPPLY 13,001 6,245 3,341 3,778 3,554 5,504 12,806 20,248 30,953 35,913 30,340 23, ,341 Costs ($000) 28 FIXED PRICE CONTRACTS 29 AVG FIXED CONTRACTS ($/Mcf) $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $ INDEX PRICED CONTRACTS 19,536 20,167 19,764 20,662 20,700 15,629 16, , AVG INDEX CONTRACTS ($/Mcf) $2.85 $2.85 $2.89 $2.92 $2.92 $2.89 $2.92 $0.00 $0.00 $0.00 $0.00 $0.00 $ Options Cost: Calls or (Puts) 33 Not Under Contract 43,389 37,086 36,220 38,215 38,282 40,525 23,278 27,067 30,906 34,320 26,503 29, , Unused Reservation Charges 35 Imbalance Gas 36 TOTAL GCR PURCH & PROD 62,925 57,252 55,984 58,877 58,982 56,155 39,560 27,067 30,906 34,320 26,503 29, , AVERAGE GCR PURCH & PROD $ $ $ $ $ $ $ $ $ $ $ $ $ NET STORAGE - GCR -26,842-40,473-47,036-48,551-49,267-41,191-3,532 32,297 61,539 73,901 64,718 40,709 16, TOTAL SUPPLY COST 36,083 16,779 8,948 10,326 9,715 14,963 36,028 59,365 92, ,221 91,221 70, , Net System Uses TOTAL COST - GCR 36,120 16,799 9,062 10,246 9,599 14,747 35,919 59,663 92, ,990 91,290 70, , AVERAGE COST - GCR $ $ $ $ $ $ $ $ $ $ $ $ $ CORE CUSTOMER STORAGE 43 Inventory - GCR (BCF) Inventory - GCC (BCF) Combined Inv. (BCF) Inventory - GCR ($000,000) Inventory - GCR ($/Mcf) $3.075 $3.020 $2.980 $2.956 $2.939 $2.923 $2.922 $2.922 $2.922 $2.922 $2.922 $ Inventory - GCC ($000,000) Inventory - GCC ($/Mcf) $3.828 $3.828 $3.828 $3.828 $3.828 $3.828 $3.828 $3.828 $3.828 $3.828 $3.828 $ Combined Inv. ($000,000) Combined Inv. ($/Mcf) $3.070 $3.028 $3.005 $2.998 $2.994 $2.989 $2.999 $3.007 $3.009 $3.000 $2.983 $2.962

44 MICHIGAN PUBLIC SERVICE COMMISSION GCR 2018/2019 REQUIREMENTS, SUPPLIES, AND COST OF GAS Case No.: U Exhibit No.: A-28 (MHR-4) Page: 2 of 5 Witness: MHRoss Line No. REQUIREMENTS, MMCF 1 CALENDAR SALES 2 SYSTEM LOSS / (GAIN) 3 GAS SOLD VOLUME 4 SALES - GCC 5 SALES - GCR 6 USES 7 FIRM TRANSPORTATION FUEL 8 TOTAL REQUIREMENTS 9 FIXED PRICE CONTRACTS (net) 10 FIXED PRICE CONTRACTS (%) 11 INDEX PRICED CONTRACTS (net) 12 INDEX PRICED CONTRACTS (%) 13 TOTAL CONTRACTS % 14 Fixed Coverage Volume 15 Fixed Coverage (%) 16 Fixed Winter Coverage Volume 17 Winter Fixed Coverage (%) 18 Fixed Summer Coverage Volume 19 Summer Fixed Coverage (%) 20 NOT UNDER CONTRACT 21 TOTAL PURCHASES 22 Average Mo Purchases (MMCFD) 23 Imbalance Gas 24 TOTAL GCR PURCH & PROD 25 NET STORAGE - GCR 26 FT TRANSPORTATION FUEL (F'cast only) 27 TOTAL SUPPLY Costs ($000) 28 FIXED PRICE CONTRACTS 29 AVG FIXED CONTRACTS ($/Mcf) 30 INDEX PRICED CONTRACTS 31 AVG INDEX CONTRACTS ($/Mcf) 32 Options Cost: Calls or (Puts) 33 Not Under Contract 34 Unused Reservation Charges 35 Imbalance Gas 36 TOTAL GCR PURCH & PROD 37 AVERAGE GCR PURCH & PROD 38 NET STORAGE - GCR 39 TOTAL SUPPLY COST 40 Net System Uses 41 TOTAL COST - GCR 42 AVERAGE COST - GCR CORE CUSTOMER STORAGE 43 Inventory - GCR (BCF) 44 Inventory - GCC (BCF) 45 Combined Inv. (BCF) 46 Inventory - GCR ($000,000) 47 Inventory - GCR ($/Mcf) 48 Inventory - GCC ($000,000) 49 Inventory - GCC ($/Mcf) 50 Combined Inv. ($000,000) 51 Combined Inv. ($/Mcf) Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Apr-19 May-19 Jun-19 Jul-19 Aug-19 Sep-19 Oct-19 Nov-19 Dec-19 Jan-20 Feb-20 Mar-20 Total 17,198 8,490 4,562 4,460 4,138 6,065 13,767 22,778 35,457 42,077 36,423 29, , ,997 17,504 8,641 4,644 4,540 4,212 6,173 14,013 23,184 36,088 42,827 37,072 29, ,438 4,280 2,262 1, ,177 2,599 4,740 6,565 6,276 5,445 36,742 13,224 6,379 3,432 3,767 3,525 5,446 12,835 20,585 31,349 36,262 30,796 24, , ,028 13,307 6,476 3,494 3,907 3,678 5,627 12,977 20,548 31,423 36,397 30,835 24, , % 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 5,401 5,581 5,401 5,581 5,581 2,505 2, , % 25.7% 25.7% 25.7% 25.7% 11.9% 18.6% 0.0% 0.0% 0.0% 0.0% 0.0% 17.0% 24.0% 25.7% 25.7% 25.7% 25.7% 11.9% 18.6% 0.0% 0.0% 0.0% 0.0% 0.0% 17.0% 0.0% % 0.0% 17,099 16,103 15,584 16,103 16,103 18,485 11,361 9,550 9,869 9,869 9,232 9, ,227 22,500 21,685 20,985 21,685 21,685 20,990 13,950 9,550 9,869 9,869 9,232 9, , ,500 21,685 20,985 21,685 21,685 20,990 13,950 9,550 9,869 9,869 9,232 9, ,867-9,291-15,311-17,590-17,879-18,109-15,462-1,075 10,934 21,489 26,463 21,541 14, ,028 13,307 6,476 3,494 3,907 3,678 5,627 12,977 20,548 31,423 36,397 30,835 24, ,778 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $ ,856 15,096 14,748 15,369 15,366 7,107 7, ,934 $2.75 $2.70 $2.73 $2.75 $2.75 $2.84 $2.86 $0.00 $0.00 $0.00 $0.00 $0.00 $ ,334 40,774 38,996 41,043 41,006 46,564 28,913 26,961 29,479 30,771 28,585 29, ,095 59,189 55,870 53,743 56,412 56,371 53,670 36,307 26,961 29,479 30,771 28,585 29, ,030 $ $ $ $ $ $ $ $ $ $ $ $ $ ,442-39,448-45,048-46,512-47,075-39,534-2,799 29,798 58,560 72,115 58,702 38,625 12,940 34,747 16,422 8,695 9,900 9,296 14,136 33,508 56,759 88, ,886 87,287 68, , ,788 16,436 8,789 9,800 9,165 13,924 33,407 57,043 88, ,669 87,358 68, ,848 $ $ $ $ $ $ $ $ $ $ $ $ $ $2.887 $2.835 $2.791 $2.764 $2.744 $2.726 $2.725 $2.725 $2.725 $2.725 $2.725 $ $3.593 $3.593 $3.593 $3.593 $3.593 $3.593 $3.593 $3.593 $3.593 $3.593 $3.593 $ $2.883 $2.843 $2.814 $2.801 $2.792 $2.783 $2.793 $2.799 $2.801 $2.794 $2.779 $2.762

45 MICHIGAN PUBLIC SERVICE COMMISSION GCR 2018/2019 REQUIREMENTS, SUPPLIES, AND COST OF GAS Case No.: U Exhibit No.: A-28 (MHR-4) Page: 3 of 5 Witness: MHRoss Line No. REQUIREMENTS, MMCF 1 CALENDAR SALES 2 SYSTEM LOSS / (GAIN) 3 GAS SOLD VOLUME 4 SALES - GCC 5 SALES - GCR 6 USES 7 FIRM TRANSPORTATION FUEL 8 TOTAL REQUIREMENTS 9 FIXED PRICE CONTRACTS (net) 10 FIXED PRICE CONTRACTS (%) 11 INDEX PRICED CONTRACTS (net) 12 INDEX PRICED CONTRACTS (%) 13 TOTAL CONTRACTS % 14 Fixed Coverage Volume 15 Fixed Coverage (%) 16 Fixed Winter Coverage Volume 17 Winter Fixed Coverage (%) 18 Fixed Summer Coverage Volume 19 Summer Fixed Coverage (%) 20 NOT UNDER CONTRACT 21 TOTAL PURCHASES 22 Average Mo Purchases (MMCFD) 23 Imbalance Gas 24 TOTAL GCR PURCH & PROD 25 NET STORAGE - GCR 26 FT TRANSPORTATION FUEL (F'cast only) 27 TOTAL SUPPLY Costs ($000) 28 FIXED PRICE CONTRACTS 29 AVG FIXED CONTRACTS ($/Mcf) 30 INDEX PRICED CONTRACTS 31 AVG INDEX CONTRACTS ($/Mcf) 32 Options Cost: Calls or (Puts) 33 Not Under Contract 34 Unused Reservation Charges 35 Imbalance Gas 36 TOTAL GCR PURCH & PROD 37 AVERAGE GCR PURCH & PROD 38 NET STORAGE - GCR 39 TOTAL SUPPLY COST 40 Net System Uses 41 TOTAL COST - GCR 42 AVERAGE COST - GCR CORE CUSTOMER STORAGE 43 Inventory - GCR (BCF) 44 Inventory - GCC (BCF) 45 Combined Inv. (BCF) 46 Inventory - GCR ($000,000) 47 Inventory - GCR ($/Mcf) 48 Inventory - GCC ($000,000) 49 Inventory - GCC ($/Mcf) 50 Combined Inv. ($000,000) 51 Combined Inv. ($/Mcf) Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Apr-20 May-20 Jun-20 Jul-20 Aug-20 Sep-20 Oct-20 Nov-20 Dec-20 Jan-21 Feb-21 Mar-21 Total 17,170 8,501 4,596 4,498 4,182 6,096 13,786 22,750 35,371 42,213 36,538 29, , ,997 17,476 8,653 4,678 4,578 4,257 6,205 14,031 23,156 36,002 42,961 37,186 29, ,822 3,900 2,064 1, ,074 2,358 4,290 5,947 5,679 4,926 33,357 13,576 6,589 3,569 3,868 3,625 5,537 12,957 20,797 31,712 37,014 31,507 24, , ,026 13,657 6,684 3,631 4,009 3,780 5,720 13,098 20,760 31,785 37,151 31,545 24, , % 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 5,401 5,581 5,401 5,581 5,581 2,505 2, , % 25.2% 25.2% 25.2% 25.2% 11.7% 18.6% 0.0% 0.0% 0.0% 0.0% 0.0% 16.7% 24.0% 25.2% 25.2% 25.2% 25.2% 11.7% 18.6% 0.0% 0.0% 0.0% 0.0% 0.0% 16.7% 0.0% % 0.0% 17,099 16,560 16,026 16,560 16,560 18,920 11,361 9,955 10,286 10,286 9,291 10, ,191 22,500 22,141 21,427 22,141 22,141 21,426 13,950 9,955 10,286 10,286 9,291 10, , ,500 22,141 21,427 22,141 22,141 21,426 13,950 9,955 10,286 10,286 9,291 10, ,831-8,942-15,559-17,895-18,234-18,464-15, ,742 21,433 26,798 22,194 14, ,026 13,657 6,684 3,631 4,009 3,780 5,720 13,098 20,760 31,785 37,151 31,545 24, ,545 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $ ,556 14,892 14,580 15,226 15,313 7,084 7, ,038 $2.69 $2.67 $2.70 $2.73 $2.74 $2.83 $2.85 $0.00 $0.00 $0.00 $0.00 $0.00 $ ,812 41,952 40,101 41,958 42,188 47,957 29,719 28,439 31,098 32,390 29,160 31, ,064 58,368 56,844 54,680 57,183 57,501 55,041 37,107 28,439 31,098 32,390 29,160 31, ,102 $ $ $ $ $ $ $ $ $ $ $ $ $ ,197-39,946-45,666-47,093-47,950-40,600-2,538 28,337 56,539 70,693 58,547 37,918 5,044 35,172 16,898 9,014 10,091 9,551 14,441 34,568 56,776 87, ,083 87,707 69, , ,218 16,915 9,108 9,990 9,415 14,225 34,466 57,065 87, ,861 87,775 69, ,024 $ $ $ $ $ $ $ $ $ $ $ $ $ $2.710 $2.686 $2.664 $2.652 $2.645 $2.638 $2.638 $2.638 $2.638 $2.638 $2.638 $ $3.005 $3.005 $3.005 $3.005 $3.005 $3.005 $3.005 $3.005 $3.005 $3.005 $3.005 $ $2.708 $2.689 $2.673 $2.667 $2.664 $2.660 $2.664 $2.666 $2.667 $2.664 $2.659 $2.652

46 MICHIGAN PUBLIC SERVICE COMMISSION GCR 2018/2019 REQUIREMENTS, SUPPLIES, AND COST OF GAS Case No.: U Exhibit No.: A-28 (MHR-4) Page: 4 of 5 Witness: MHRoss Line No. REQUIREMENTS, MMCF 1 CALENDAR SALES 2 SYSTEM LOSS / (GAIN) 3 GAS SOLD VOLUME 4 SALES - GCC 5 SALES - GCR 6 USES 7 FIRM TRANSPORTATION FUEL 8 TOTAL REQUIREMENTS 9 FIXED PRICE CONTRACTS (net) 10 FIXED PRICE CONTRACTS (%) 11 INDEX PRICED CONTRACTS (net) 12 INDEX PRICED CONTRACTS (%) 13 TOTAL CONTRACTS % 14 Fixed Coverage Volume 15 Fixed Coverage (%) 16 Fixed Winter Coverage Volume 17 Winter Fixed Coverage (%) 18 Fixed Summer Coverage Volume 19 Summer Fixed Coverage (%) 20 NOT UNDER CONTRACT 21 TOTAL PURCHASES 22 Average Mo Purchases (MMCFD) 23 Imbalance Gas 24 TOTAL GCR PURCH & PROD 25 NET STORAGE - GCR 26 FT TRANSPORTATION FUEL (F'cast only) 27 TOTAL SUPPLY Costs ($000) 28 FIXED PRICE CONTRACTS 29 AVG FIXED CONTRACTS ($/Mcf) 30 INDEX PRICED CONTRACTS 31 AVG INDEX CONTRACTS ($/Mcf) 32 Options Cost: Calls or (Puts) 33 Not Under Contract 34 Unused Reservation Charges 35 Imbalance Gas 36 TOTAL GCR PURCH & PROD 37 AVERAGE GCR PURCH & PROD 38 NET STORAGE - GCR 39 TOTAL SUPPLY COST 40 Net System Uses 41 TOTAL COST - GCR 42 AVERAGE COST - GCR CORE CUSTOMER STORAGE 43 Inventory - GCR (BCF) 44 Inventory - GCC (BCF) 45 Combined Inv. (BCF) 46 Inventory - GCR ($000,000) 47 Inventory - GCR ($/Mcf) 48 Inventory - GCC ($000,000) 49 Inventory - GCC ($/Mcf) 50 Combined Inv. ($000,000) 51 Combined Inv. ($/Mcf) Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Apr-21 May-21 Jun-21 Jul-21 Aug-21 Sep-21 Oct-21 Nov-21 Dec-21 Jan-22 Feb-22 Mar-22 Total 17,254 8,572 4,662 4,565 4,250 6,169 13,867 22,850 35,489 42,192 36,513 29, , ,997 17,560 8,724 4,745 4,646 4,326 6,279 14,113 23,255 36,118 42,940 37,160 29, ,492 3,524 1,867 1, ,120 3,847 5,329 5,082 4,404 29,980 14,036 6,856 3,739 3,999 3,750 5,671 13,142 21,135 32,271 37,611 32,078 25, , ,026 14,117 6,952 3,802 4,143 3,907 5,857 13,284 21,098 32,345 37,748 32,116 25, , % 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% % 0.0% 22,500 22,633 21,903 22,633 22,633 21,903 13,950 10,261 10,604 10,604 9,577 10, ,803 22,500 22,633 21,903 22,633 22,633 21,903 13,950 10,261 10,604 10,604 9,577 10, , ,500 22,633 21,903 22,633 22,633 21,903 13,950 10,261 10,604 10,604 9,577 10, ,803-8,482-15,783-18,199-18,592-18,828-16, ,772 21,676 27,078 22,479 14, ,026 14,117 6,952 3,802 4,143 3,907 5,857 13,284 21,098 32,345 37,748 32,116 25, ,606 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $ ,535 58,152 55,731 58,137 58,438 56,607 37,164 29,557 32,038 33,238 29,955 32, ,173 58,535 58,152 55,731 58,137 58,438 56,607 37,164 29,558 32,038 33,238 29,955 32, ,173 $ $ $ $ $ $ $ $ $ $ $ $ $ ,065-40,552-46,308-47,756-48,614-41,725-2,046 28,006 56,352 70,397 58,442 37,873 2,003 36,470 17,600 9,423 10,380 9,825 14,881 35,117 57,563 88, ,636 88,397 70, , ,515 17,617 9,513 10,273 9,683 14,658 35,010 57,854 88, ,414 88,465 70, ,023 $ $ $ $ $ $ $ $ $ $ $ $ $ $2.634 $2.623 $2.610 $2.604 $2.601 $2.599 $2.600 $2.600 $2.600 $2.600 $2.600 $ $2.988 $2.988 $2.988 $2.988 $2.988 $2.988 $2.988 $2.988 $2.988 $2.988 $2.988 $ $2.632 $2.626 $2.619 $2.618 $2.619 $2.620 $2.625 $2.627 $2.628 $2.625 $2.620 $2.613

47 MICHIGAN PUBLIC SERVICE COMMISSION GCR 2018/2019 REQUIREMENTS, SUPPLIES, AND COST OF GAS Case No.: U Exhibit No.: A-28 (MHR-4) Page: 5 of 5 Witness: MHRoss Line No. REQUIREMENTS, MMCF 1 CALENDAR SALES 2 SYSTEM LOSS / (GAIN) 3 GAS SOLD VOLUME 4 SALES - GCC 5 SALES - GCR 6 USES 7 FIRM TRANSPORTATION FUEL 8 TOTAL REQUIREMENTS 9 FIXED PRICE CONTRACTS (net) 10 FIXED PRICE CONTRACTS (%) 11 INDEX PRICED CONTRACTS (net) 12 INDEX PRICED CONTRACTS (%) 13 TOTAL CONTRACTS % 14 Fixed Coverage Volume 15 Fixed Coverage (%) 16 Fixed Winter Coverage Volume 17 Winter Fixed Coverage (%) 18 Fixed Summer Coverage Volume 19 Summer Fixed Coverage (%) 20 NOT UNDER CONTRACT 21 TOTAL PURCHASES 22 Average Mo Purchases (MMCFD) 23 Imbalance Gas 24 TOTAL GCR PURCH & PROD 25 NET STORAGE - GCR 26 FT TRANSPORTATION FUEL (F'cast only) 27 TOTAL SUPPLY Costs ($000) 28 FIXED PRICE CONTRACTS 29 AVG FIXED CONTRACTS ($/Mcf) 30 INDEX PRICED CONTRACTS 31 AVG INDEX CONTRACTS ($/Mcf) 32 Options Cost: Calls or (Puts) 33 Not Under Contract 34 Unused Reservation Charges 35 Imbalance Gas 36 TOTAL GCR PURCH & PROD 37 AVERAGE GCR PURCH & PROD 38 NET STORAGE - GCR 39 TOTAL SUPPLY COST 40 Net System Uses 41 TOTAL COST - GCR 42 AVERAGE COST - GCR CORE CUSTOMER STORAGE 43 Inventory - GCR (BCF) 44 Inventory - GCC (BCF) 45 Combined Inv. (BCF) 46 Inventory - GCR ($000,000) 47 Inventory - GCR ($/Mcf) 48 Inventory - GCC ($000,000) 49 Inventory - GCC ($/Mcf) 50 Combined Inv. ($000,000) 51 Combined Inv. ($/Mcf) Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Forecast Apr-22 May-22 Jun-22 Jul-22 Aug-22 Sep-22 Oct-22 Nov-22 Dec-22 Jan-23 Feb-23 Mar-23 Total 17,270 8,607 4,710 4,610 4,302 6,212 13,900 22,853 35,466 42,314 36,617 29, , ,997 17,576 8,759 4,793 4,691 4,379 6,322 14,146 23,258 36,094 43,061 37,263 29, ,046 3,151 1, ,883 3,407 4,709 4,485 3,881 26,604 14,426 7,088 3,890 4,110 3,860 5,777 13,279 21,375 32,687 38,352 32,778 25, , ,026 14,507 7,184 3,954 4,255 4,019 5,964 13,421 21,338 32,766 38,497 32,821 25, , % 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% 0.0% % 0.0% 22,500 23,093 22,348 23,093 23,093 22,348 13,950 10,596 10,949 10,949 9,889 10, ,756 22,500 23,093 22,348 23,093 23,093 22,348 13,950 10,596 10,949 10,949 9,889 10, , ,500 23,093 22,348 23,093 23,093 22,348 13,950 10,596 10,949 10,949 9,889 10, ,756-8,092-16,010-18,493-18,939-19,175-16, ,678 21,751 27,482 22,872 14, ,026 14,507 7,184 3,954 4,255 4,019 5,964 13,421 21,338 32,766 38,497 32,821 25, ,567 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $ ,011 61,087 58,306 60,667 61,109 59,188 37,911 30,506 33,107 34,843 31,301 34, ,268 60,011 61,087 58,306 60,667 61,109 59,188 37,911 30,506 33,107 34,843 31,301 34, ,268 $ $ $ $ $ $ $ $ $ $ $ $ $ ,582-42,351-48,248-49,756-50,742-43,655-1,715 28,001 57,037 72,065 59,977 38,879-2,090 38,429 18,735 10,058 10,911 10,367 15,533 36,196 58,507 90, ,908 91,278 73, , ,475 18,750 10,149 10,797 10,214 15,300 36,086 58,797 90, ,656 91,330 73, ,918 $ $ $ $ $ $ $ $ $ $ $ $ $ $2.607 $2.614 $2.613 $2.615 $2.619 $2.622 $2.622 $2.622 $2.622 $2.622 $2.622 $ $3.027 $3.027 $3.027 $3.027 $3.027 $3.027 $3.027 $3.027 $3.027 $3.027 $3.027 $ $2.605 $2.617 $2.621 $2.628 $2.636 $2.641 $2.645 $2.647 $2.648 $2.646 $2.641 $2.635

48 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-29 (MHR-5) Page 1 of 1 Witness: MHRoss Consumers Energy Historic Citygate Purchases MDth/Day / / / / / / / / / / /17

49 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-30 (MHR-6) Page 1 of 2 Witness: MHRoss Consumers Energy Citygate Delivered Cost Comparison Consumers Energy '18 April - October Term - Summer Line Location NYMEX* Basis* Natural Gas Cost Variable Fuel Transport. Delivered Cost Difference to CE CG (h) - (f) (a) (b) (c) (d) (e) (f) (g) (h) (i) 1 CE CG $ $ (0.228) $ $ - $ - $ Trunkline 1A $ $ (0.113) $ $ $ $ $ $ (0.1573) 3 Trunkline REX $ $ (0.323) $ $ $ $ $ $ PEPL REX $ $ (0.323) $ $ $ $ $ $ Emerson/Chip $ $ (0.487) $ $ $ $ $ $ GL/ANR $ $ (0.487) $ $ $ $ $ $ Vector $ $ (0.290) $ $ $ $ $ $ PEPL Fld $ $ (0.550) $ $ $ $ $ $ NEXUS $ $ (0.703) $ $ $ $ $ $ Rover $ $ (0.703) $ $ $ $ $ $ Consumers Energy '18 - '19 November - March Term-Winter Line Location NYMEX* Basis* Natural Gas Cost Variable Fuel Transport. Delivered Cost Difference to CE CG (h) - (f) (a) (b) (c) (d) (e) (f) (g) (h) (i) 1 CE CG $ $ (0.066) $ $ - $ - $ Trunkline 1A $ $ (0.088) $ $ $ $ $ $ (0.0161) 3 Trunkline REX $ $ (0.200) $ $ $ $ $ $ PEPL REX $ $ (0.200) $ $ $ $ $ $ Emerson/Chip $ $ (0.265) $ $ $ $ $ $ GL/ANR $ $ (0.265) $ $ $ $ $ $ Vector $ $ (0.055) $ $ $ $ $ $ (0.0380) 8 PEPL Fld $ $ (0.430) $ $ $ $ $ $ NEXUS $ $ (0.483) $ $ $ $ $ $ Rover $ $ (0.483) $ $ $ $ $ $ *Argus N.A. Natural Gas Forward Curves, 11/15/17 Citygate delivered cost projected to be the most economic supply option.

50 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-30 (MHR-6) Page 2 of 2 Witness: MHRoss Consumers Energy Citygate Delivered Cost Comparison Consumers Energy '18 - '23 April - October Term - Summer Line Location NYMEX* Basis* Natural Gas Cost Variable Fuel Transport. Delivered Cost Difference to CE CG (h) - (f) (a) (b) (c) (d) (e) (f) (g) (h) (i) 1 CE CG $ $ (0.232) $ $ - $ - $ Trunkline 1A $ $ (0.088) $ $ $ $ $ $ (0.1838) 3 Trunkline REX $ $ (0.314) $ $ $ $ $ $ PEPL REX $ $ (0.314) $ $ $ $ $ $ Emerson/Chip $ $ (0.252) $ $ $ $ $ $ (0.0006) 7 GL/ANR $ $ (0.252) $ $ $ $ $ $ (0.0062) 8 Vector $ $ (0.278) $ $ $ $ $ $ PEPL Fld $ $ (0.485) $ $ $ $ $ $ NEXUS $ $ (0.657) $ $ $ $ $ $ Rover $ $ (0.657) $ $ $ $ $ $ Consumers Energy '18 - '23 November - March Term-Winter Line Location NYMEX* Basis* Natural Gas Cost Variable Fuel Transport. Delivered Cost Difference to CE CG (h) - (f) (a) (b) (c) (d) (e) (f) (g) (h) (i) 1 CE CG $ $ (0.071) $ $ - $ - $ Trunkline 1A $ $ (0.062) $ $ $ $ $ $ (0.0464) 3 Trunkline REX $ $ (0.210) $ $ $ $ $ $ PEPL REX $ $ (0.210) $ $ $ $ $ $ Emerson/Chip $ $ (0.085) $ $ $ $ $ $ (0.0103) 7 GL/ANR $ $ (0.085) $ $ $ $ $ $ (0.0168) 8 Vector $ $ (0.052) $ $ $ $ $ $ (0.0455) 9 PEPL Fld $ $ (0.341) $ $ $ $ $ $ NEXUS $ $ (0.482) $ $ $ $ $ $ Rover $ $ (0.482) $ $ $ $ $ $ *Argus N.A. Natural Gas Forward Curves, 11/15/17 Citygate delivered cost projected to be the most economic supply option.

51 MICHIGAN PUBLIC SERVICE COMMISSION Consumers Energy CE Citygate Price Volatility by GCR Year Case No.: U Exhibit No.: A-31 (MHR-7) Page 1 of 2 Witness: MHRoss Increase in US Shale Production Data source: S&P Global Platts

52 MICHIGAN PUBLIC SERVICE COMMISSION Consumers Energy Citygate Winter Heating Degree Day Volatility by GCR Year Case No.: U Exhibit No.: A-31 (MHR-7) Page 2 of 2 Witness: MHRoss Weighted Winter DD less base amount per Exhibit A-10 (JJG-7)

53 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-32 (MHR-8) Page 1 of 1 Witness: MHRoss SUMMARY OF FIRM AND INTERRUPTIBLE TRANSPORTATION CONTRACTS Effective April 1, 2018 CONTRACT CONTRACT VOLUME PIPELINE DATE NUMBER (dth/d) TERM RATE Firm Transportation Panhandle Eastern Pipe Line REX/Putnam 12/18/ ,000 11/1/16-10/31/23 $0.1771/dth + fuel Trunkline Gas Company (winter) REX/Douglas 12/18/ ,000 11/1/16-03/31/20 $0.1584/dth + fuel Trunkline Gas Company (summer) REX/Douglas 12/18/ ,000 04/1/17-10/31/20 $0.1565/dth + fuel Interruptible Transportation Great Lakes Gas Transmission 12/31/1997 IT ,000 month-to-month negotiable Trunkline Gas Company 7/22/ ,000 7/22/15-7/31/20 negotiable

54 Exhibit No.: A-33 (MHR-9) Page: 1 of 2 Witness: MHRoss GCR 2018 / 2019 Establishment of NYMEX Pricing for 5-Year Cost of Gas Forecast Settlement Settlement Settlement Settlement Settlement Line Contract Price Price Price Price Price $/MMBtu No. Month 1-Dec-17 4-Dec-17 5-Dec-17 6-Dec-17 7-Dec-17 Average 1 April-18 $2.878 $2.834 $2.797 $2.804 $2.705 $ May-18 $2.869 $2.829 $2.798 $2.804 $2.713 $ June-18 $2.898 $2.860 $2.831 $2.838 $2.751 $ July-18 $2.931 $2.892 $2.865 $2.872 $2.789 $ August-18 $2.936 $2.896 $2.870 $2.877 $2.796 $ September-18 $2.919 $2.879 $2.853 $2.859 $2.780 $ October-18 $2.943 $2.903 $2.878 $2.884 $2.807 $ November-18 $2.997 $2.958 $2.936 $2.941 $2.871 $ December-18 $3.129 $3.090 $3.069 $3.072 $3.009 $ January-19 $3.218 $3.177 $3.158 $3.161 $3.103 $ February-19 $3.187 $3.146 $3.130 $3.131 $3.077 $ March-19 $3.113 $3.071 $3.061 $3.061 $3.011 $ Average $3.002 $2.961 $2.937 $2.942 $2.868 $ April-19 $2.750 $2.710 $2.730 $2.726 $2.696 $ May-19 $2.705 $2.667 $2.689 $2.685 $2.658 $ June-19 $2.727 $2.689 $2.711 $2.708 $2.681 $ July-19 $2.752 $2.714 $2.736 $2.732 $2.705 $ August-19 $2.752 $2.713 $2.735 $2.731 $2.705 $ September-19 $2.735 $2.695 $2.718 $2.714 $2.688 $ October-19 $2.758 $2.718 $2.742 $2.737 $2.712 $ November-19 $2.813 $2.773 $2.795 $2.788 $2.762 $ December-19 $2.962 $2.923 $2.944 $2.935 $2.908 $ January-20 $3.072 $3.032 $3.053 $3.043 $3.019 $ February-20 $3.046 $3.006 $3.027 $3.018 $2.995 $ March-20 $2.994 $2.954 $2.975 $2.966 $2.945 $ Average $2.839 $2.800 $2.821 $2.815 $2.790 $ April-20 $2.712 $2.669 $2.680 $2.672 $2.663 $ May-20 $2.689 $2.646 $2.657 $2.648 $2.639 $ June-20 $2.715 $2.674 $2.685 $2.676 $2.667 $ July-20 $2.744 $2.704 $2.715 $2.706 $2.697 $ August-20 $2.759 $2.719 $2.730 $2.721 $2.712 $ September-20 $2.759 $2.719 $2.730 $2.721 $2.712 $ October-20 $2.789 $2.749 $2.760 $2.751 $2.742 $ November-20 $2.859 $2.819 $2.830 $2.821 $2.812 $ December-20 $3.009 $2.969 $2.980 $2.971 $2.960 $ January-21 $3.119 $3.080 $3.091 $3.082 $3.071 $ February-21 $3.092 $3.054 $3.065 $3.056 $3.045 $ March-21 $3.036 $2.999 $3.010 $3.001 $2.990 $ Average $2.857 $2.817 $2.828 $2.819 $2.809 $2.826

55 Exhibit No.: A-33 (MHR-9) Page: 2 of 2 Witness: MHRoss GCR 2018 / 2019 Establishment of NYMEX Pricing for 5-Year Cost of Gas Forecast Settlement Settlement Settlement Settlement Settlement Line Contract Price Price Price Price Price $/MMBtu No. Month 1-Dec-17 4-Dec-17 5-Dec-17 6-Dec-17 7-Dec-17 Average 40 April-21 $2.724 $2.687 $2.698 $2.694 $2.685 $ May-21 $2.701 $2.664 $2.675 $2.671 $2.662 $ June-21 $2.726 $2.689 $2.699 $2.695 $2.686 $ July-21 $2.753 $2.716 $2.725 $2.721 $2.712 $ August-21 $2.768 $2.731 $2.739 $2.735 $2.726 $ September-21 $2.768 $2.731 $2.739 $2.735 $2.726 $ October-21 $2.794 $2.757 $2.763 $2.759 $2.750 $ November-21 $2.864 $2.829 $2.833 $2.829 $2.820 $ December-21 $3.014 $2.979 $2.979 $2.975 $2.968 $ January-22 $3.126 $3.094 $3.089 $3.087 $3.080 $ February-22 $3.099 $3.068 $3.060 $3.060 $3.054 $ March-22 $3.043 $3.013 $3.001 $3.001 $2.998 $ Average $2.865 $2.830 $2.833 $2.830 $2.822 $ April-22 $2.738 $2.708 $2.701 $2.694 $2.698 $ May-22 $2.718 $2.688 $2.683 $2.676 $2.680 $ June-22 $2.743 $2.713 $2.708 $2.701 $2.705 $ July-22 $2.770 $2.740 $2.735 $2.728 $2.732 $ August-22 $2.790 $2.760 $2.755 $2.748 $2.752 $ September-22 $2.790 $2.760 $2.755 $2.748 $2.752 $ October-22 $2.816 $2.786 $2.781 $2.774 $2.778 $ November-22 $2.888 $2.858 $2.853 $2.846 $2.850 $ December-22 $3.038 $3.008 $3.003 $2.996 $3.000 $ January-23 $3.158 $3.130 $3.123 $3.116 $3.120 $ February-23 $3.131 $3.104 $3.097 $3.090 $3.094 $ March-23 $3.074 $3.048 $3.041 $3.034 $3.038 $ Average $2.888 $2.859 $2.853 $2.846 $2.850 $2.859

56 Exhibit No.: A-34 (MHR-10) Design Winter and Peak Day Requirements Page: 1 of 3 Witness: MHRoss 1/31/2019 2/28/2019 3/31/ Degree 65 Degree 50 Degree Line Days Days Days No. MMCF MMCF MMCF Load Requirement 1 Sales & Choice (1) 2,781 2,299 1,817 2 End Users (2) MCV Fuel, Use & Est. Loss (3) Total 3,526 2,984 2,441 Supplies (4) 6 Under Contract Additional Requirements Total GCR Gas Customer Choice End Users MCV Fuel Credits Total Others Total Pipeline Supply Storage Supply 2,843 2,303 1, Linepack Supply Total Supply 3,526 2,984 2, % Pipeline Supply 19% 22% 28% 19 % Storage/Linepack Supply 81% 78% 72% Storage Volume 20 GCR Sales (5) 103,276 81,130 67, Choice 9,668 5,785 3, End Users 5,383 4,431 4, MCV 6,388 5,508 4, Buy/Sell Total 124,715 96,854 79,254 (1) Includes 50 MMcf of electric peaker sales. (2) Includes 27 MMcf for Lansing BW&L. (3) Estimated fuel & use per Sendout Model, Estimated loss served by line pack. (4) Supplies include interstate pipeline transportation fuel where applicable. (5) Includes 62.7 Bcf of recoverable base gas. Numbers may not add due to rounding Normal November through March

57 Exhibit No.: A-34 (MHR-10) Design Winter and Peak Day Requirements Page: 2 of 3 Witness: MHRoss 1/31/2019 2/28/2019 3/31/ Degree 65 Degree 50 Degree Line Days Days Days No. MMCF MMCF MMCF Load Requirement 1 Sales & Choice (1) 2,781 2,299 1,817 2 End Users (2) MCV Fuel, Use & Loss (3) Total 3,526 2,984 2,441 Supplies (4) 6 Under Contract Additional Requirements Total GCR Gas Customer Choice End Users MCV Fuel Credits Total Others Total Pipeline Supply Storage Supply 2,709 2,118 1, Linepack Supply Total Supply 3,526 2,984 2, % Pipeline Supply 23% 29% 36% 19 % Storage/Linepack Supply 77% 71% 64% Storage Volume 20 GCR Sales (5) 96,067 75,529 63, Choice 7,957 3, End Users 4,741 3,468 3, MCV 5,210 3,688 2, Buy/Sell Total 113,975 86,267 69,574 (1) Includes 50 MMcf of electric peaker sales. (2) Includes 27 MMcf for Lansing BW&L. (3) Estimated fuel & use per Sendout Model, Estimated loss served by line pack. (4) Supplies include interstate pipeline transportation fuel where applicable. (5) Includes 62.7 Bcf of recoverable base gas. Numbers may not add due to rounding Design Colder than Normal November through March

58 Exhibit No.: A-34 (MHR-10) Design Winter and Peak Day Requirements Page: 3 of 3 Witness: MHRoss 2018 / 19 Design Cold and Normal Weather Supply Summary (1) Units - MMcfd Line Total No. Weather Scenario Supplier Nov-18 Dec-18 Jan-19 Feb-19 Mar-19 MMcf 1 Nov through Mar Under Contract Additional Requirements ,009 3 Total GCR ,009 4 Gas Customer Choice ,658 5 Total GCR & GCC , Dec through Mar Under Contract Additional Requirements ,971 9 Total GCR , Gas Customer Choice , Total GCR & GCC , Jan through Mar Under Contract Additional Requirements , Total GCR , Gas Customer Choice , Total GCR & GCC , Feb through Mar Under Contract Additional Requirements , Total GCR , Gas Customer Choice , Total GCR & GCC , March Under Contract Additional Requirements , Total GCR , Gas Customer Choice , Total GCR & GCC , Normal Under Contract Additional Requirements , Total GCR , Gas Customer Choice , Total GCR & GCC ,847 (1) Supplies include interstate pipeline transportation fuel where applicable. Numbers may not add due to rounding.

59 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-35 (MHR-11) Page: 1 of 1 Witness: MHRoss 500 GCR 2018/2019 FILED GCR PURCHASE PLAN RANGE FOR NORMAL AND DESIGN CTN WEATHER Estimated GCR Purchase Requirements in MMcfd (gross) Design Cold November-March Normal Weather 250 Nov-18 Dec-18 Jan-19 Feb-19 Mar-19 Normal to CTN Weather GCR Purchase Range Normal Nov-Jan, Design Cold Feb-Mar

60 MICHIGAN PUBLIC SERVICE COMMISSION Consumers Energy Average Price* and Standard Deviation of Gas Purchases by Location: GCR Years 2012/2013 to 2016/2017 Case No.: U Exhibit No.: A-36 (MHR-12) Page 1 of 1 Witness: MHRoss Weighted Average Price Paid Summer StdDevP of Purchase Prices Weighted Average Price Paid Winter StdDevP of Purchase Prices 2012/2013 CE Citygate $ $ $ $ GL Emerson $ $ $ $ Panhandle Field $ $ $ $ Trunkline 1A $ $ $ $ Trunkline ELA $ $ Trunkline NTX $ $ Trunkline WLA $ $ /2014 ANR ML2 $3.82 $0.23 ANR ML7 $3.95 $0.31 $4.81 $0.75 CE Citygate $3.92 $0.30 $7.89 $4.83 GL Emerson $4.37 $0.10 $9.47 $0.71 Panhandle Field $3.90 $0.19 $4.46 $0.75 Trunkline 1A $3.77 $0.26 $4.33 $0.73 Trunkline REX $8.50 $ /2015 ANR ML7 $3.55 $2.04 CE Citygate $4.60 $0.36 $4.01 $1.83 GL Emerson $4.40 $0.37 Panhandle Field $4.00 $0.30 $3.16 $0.70 Trunkline 1A $4.25 $0.36 $3.32 $0.51 Weighted Average Price Paid Summer StdDevP of Purchase Prices Weighted Average Price Paid Winter StdDevP of Purchase Prices 2015/2016 ANR ML7 $2.64 $0.14 CE Citygate $2.85 $0.16 $2.12 $0.22 GL Emerson $2.82 $0.16 Panhandle Field $2.41 $0.18 Panhandle Gas City $1.83 $0.22 Panhandle REX $2.45 $0.00 Trunkline 1A $2.61 $0.15 $2.23 $0.08 Trunkline REX $2.50 $ /2017 CE Citygate $2.41 $0.41 $3.33 $0.53 GL Emerson $2.02 $0.34 $3.16 $0.71 Panhandle Field $2.38 $0.00 Panhandle Gas City $2.17 $0.48 $2.89 $0.47 Panhandle REX $2.31 $0.40 $3.24 $0.52 Trunkline 1A $2.07 $0.33 $2.76 $0.00 Trunkline REX $3.45 $0.57 *Prices paid do not reflect transportation costs Data source: S&P Global Platts

61 MICHIGAN PUBLIC SERVICE COMMISSION Panhandle Field Zone Price Volatility by GCR Year Case No.: U Exhibit No.: A-37 (MHR-13) Page 1 of 3 Witness: MHRoss Increase in US Shale Production Data source: S&P Global Platts

62 MICHIGAN PUBLIC SERVICE COMMISSION Case No.: U Exhibit No.: A-37 (MHR-13) Page 2 of 3 Witness: MHRoss Trunkline Zone 1A Price Volatility by GCR Year Increase in US Shale Production Data source: S&P Global Platts

63 MICHIGAN PUBLIC SERVICE COMMISSION REX Zone 3 Price Volatility by GCR Year Case No.: U Exhibit No.: A-37 (MHR-13) Page 3 of 3 Witness: MHRoss Increase in US Shale Production Data source: S&P Global Platts