November 29, Federal Energy Regulatory Commission 888 First Street, N.E. Washington, D.C Attention: Ms. Kimberly D.

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1 November 29, 2016 Federal Energy Regulatory Commission 888 First Street, N.E. Washington, D.C Attention: Ms. Kimberly D. Bose, Secretary Commissioners: Re: Annual Recomputation of Fuel and Lost and Unaccounted-for Retention Percentages, Including the Operational Purchases and Sales Report; ; Docket No. RP17- ("EPNG") tenders for filing and acceptance by the Federal Energy Regulatory Commission ("Commission"), Version of Part II, Statement of Rates, Section 3 Fuel and L&U Rates of the Third Revised Volume No. 1A Tariff of its FERC Gas Tariff ( Tariff ). This tariff record revises the Fuel and Lost and Unaccounted-For ( L&U ) retention percentages applicable to transportation service on EPNG s system and is proposed to become effective on January 1, Background Section 13 of the General Terms and Conditions (GT&C) of EPNG s Tariff provides that EPNG will annually restate its Fuel and L&U percentages to be effective January 1 st of each year. Pursuant to the Tariff and Subpart C of Part 154 of the Commission's Regulations, EPNG is hereby filing to revise its Fuel and L&U retention percentages to become effective January 1, The filing uses a twelve-month data collection period ending September 30, 2016 and includes true-up computations as specified by the Tariff. Description of Filing The development of the Fuel and L&U retention percentages involves two computations, in accordance with EPNG s Tariff provisions. First, the current period Fuel and L&U retention percentages are calculated based on Fuel consumption and L&U experienced during the twelve-month data collection period ending September 30, 2016.

2 Federal Energy Regulatory Commission 2 November 29, 2016 Second, a volumetric true-up is computed by comparing the Fuel and L&U retention during the same data collection period against actual Fuel use and L&U experienced. EPNG computes and collects L&U through a system-wide L&U reimbursement percentage, while the Fuel charges are separated into defined categories such as Mainline Fuel, Production Area Fuel 1 (further defined as Anadarko Basin Fuel, Permian Basin Fuel, and San Juan Basin Fuel), Permian Basin-Anadarko Basin Fuel, Willcox Lateral Incremental Fuel, and Interruptible Storage Service ( ISS ) Fuel. Lost and Unaccounted-for Gas The total overall system-wide L&U retention percentage increases to 0.08%. 2 The current period collection percentage increased from 0.09% to 0.12% and the volumetric true-up increased from -0.09% to -0.04%, which includes 1,000,000 dekatherms ( Dth ) of over-collected L&U that had been deferred in the previous annual filing. 3 Mainline Fuel EPNG proposes a Total Mainline Fuel retention percentage of 2.42%, an increase from the existing Total Mainline Fuel retention percentage of 2.34%. 4 The Total Mainline Fuel retention percentage is composed of a current period retention percentage of 2.35% and a true-up retention percentage of 0.07%. This represents an increase in the current period retention percentage from 2.27% to 2.35% and no change in the true-up retention percentage of 0.07%. Production Area Fuel Anadarko Basin Fuel The total fuel retention rate for the Anadarko Basin is proposed to be 0.33%, which is composed of a current period Fuel retention rate of 0.24% and a prior period true-up rate of 0.09%. 5 This is an increase of 0.15%, as compared to the total existing fuel retention rate of 0.18%. The increase is primarily due to the increase in the true-up percentage, as the over-collected volumes from prior periods have been returned to shippers. The fuel retention and true-up rates in the Anadarko Basin were calculated using the throughput volumes and fuel burned during the 12-month data collection period ending September 30, The term Within Basin in the attached schedule is synonymous with the term Production Area. See Appendix A, Schedule 1, Line 9. See Docket No. RP Appendix C, Schedule 1, Line 11. See Appendix A, Schedule 1, Line 1. See Appendix A, Schedule 1, Line 3.

3 Federal Energy Regulatory Commission 3 November 29, 2016 Permian Basin Fuel The total fuel retention rate for the Permian Basin is proposed to be 0.47%, which is composed of a current period fuel retention rate of 0.51%, and a prior period true-up rate of -0.04%. 6 This is a decrease of 0.08%, as compared to the existing fuel retention rate of 0.55%. This decrease is due to a combination of a 0.04% decrease in the current percentage and a 0.04% decrease in the true-up percentage as compared to those assessed in the prior period. The current period fuel retention and true-up rate in the Permian Basin were calculated using the throughput volumes and fuel burned during the data collection period. San Juan Basin Fuel The total fuel retention rate for the San Juan Basin is proposed to be 0.92%, which is composed of a current period fuel retention rate of 0.54%, and a prior period true-up rate of 0.38%. 7 This is an increase, as compared to the existing fuel retention rate of 0.80%, due to a large true-up percentage applied to under-collected fuel. The fuel retention and true-up rates in the San Juan Basin were calculated using the throughput volumes and fuel burned during the data collection period. Permian-Anadarko Area Fuel The total fuel retention rate for the Permian-Anadarko Area Fuel zone is proposed to be 0.02%, which is composed of a current period fuel retention rate of 0.11%, and a prior period true-up rate of -0.09%. 8 This is a decrease, as compared to the existing rate of 0.24%. The decrease is attributable to a lower current period retention percentage and an over-collection from the prior period which results in a negative true-up retention percentage. The fuel retention and true-up rates in the Permian-Anadarko Area Fuel zone were calculated using the throughput volumes and fuel burned in the data collection period. Willcox Lateral Incremental Fuel Based on the throughput and fuel burned during the data collection period, EPNG proposes a total fuel retention rate for the Willcox Lateral of 1.19%, which is composed of a current period fuel retention rate of 1.50%, and a prior period true-up rate of -0.31%. 9 Overall, this is a decrease of 0.08% from the existing total retention rate See Appendix A, Schedule 1, Line 4. See Appendix A, Schedule 1, Line 5. See Appendix A, Schedule 1, Line 6. See Appendix A, Schedule 1, Line 8.

4 Federal Energy Regulatory Commission 4 November 29, 2016 of 1.27% due to an over-collection in the previous period which results in a negative true-up retention percentage. The workpapers included in the Appendix A-E of this filing fully support and explain the proposed retention percentages for each fuel retention category and for the overall L&U. Tariff Record Section 3 Fuel and L&U of Part II Statement of Rates is tendered to revise the Fuel and Lost and Unaccounted Retention Percentages, as follows: Retention Category Currently Effective Total Percentage (Inclusive of True-ups) Collection Period Percentage Volumetric True-up Percentage Proposed Total Percentage (Inclusive of True-ups) Mainline Fuel Anadarko Within Basin Permian Within Basin (0.04) 0.47 San Juan Within Basin Permian-Anadarko Area (0.09) 0.02 Interruptible Storage Service (0.01) 1.53 Willcox Lateral Incremental (0.31) 1.19 Lost and Unaccounted For (0.04) 0.08 Operational Purchases and Sales Report As required by GT&C Section 13.3(b), EPNG is including, as Appendix F, Schedules 1 through 7 of its Operational Purchases and Sales report for the time period of October 2015 through September Procedural Matters Inasmuch as this filing is fully described herein, the statement of the nature, the reasons and the basis for the instant tariff filing required by Section 154.7(a)(6) of the Commission's regulations is omitted.

5 Federal Energy Regulatory Commission 5 November 29, 2016 In accordance with the applicable provisions of Part 154 of the Commission's regulations, EPNG is submitting an etariff filing XML package, which includes the following: 1) a transmittal letter; 2) clean and marked versions of the tariff record in PDF format; 3) workpapers under Appendices A-E in PDF format, and; 4) Operational Purchases and Sales Report pursuant to Section 13.3(b) of the GT&C under Appendix F. EPNG respectfully requests the Commission accept the tendered tariff record for filing and permit it to become effective January 1, 2017, which is not less than 30 days from the date of this filing. If the Commission allows any tariff provision to go into effect without change, EPNG hereby moves to place the tendered tariff provision into effect at the end of the suspension period, if any, specified by the Commission. Additionally, pursuant to Section 154.7(a)(7) of the Commission s regulations, EPNG respectfully requests that the Commission grant all necessary waivers in order to effectuate this filing. to: Correspondence and communications concerning this filing should be directed Ms. M. Catherine Rezendes Mr. David R. Cain Director, Rates Assistant General Counsel Post Office Box 1087 Post Office Box 1087 Colorado Springs, CO Colorado Springs, CO Telephone: (719) Telephone: (719) Facsimile: (719) Facsimile: (719) EPNGRegulatoryAffairs@kindermorgan. com David_Cain@kindermorgan. com These persons have been designated for service in accordance with Rule 203 of the Commission's Rules of Practice and Procedure.

6 Federal Energy Regulatory Commission 6 November 29, 2016 The undersigned hereby certifies that she has read this filing and knows (i) the contents of such filing and the attachments; (ii) that the contents as stated in the filing and in the attachments are true to the best of her knowledge and belief; and (iii) that she possesses full power and authority to sign this filing. Respectfully submitted, EL PASO NATURAL GAS COMPANY, L.L.C. By: /s/ M. Catherine Rezendes Director, Rates Enclosures

7 Certificate of Service I hereby certify that I have this day caused a copy of the foregoing document to be served upon all shippers on EPNG s system and interested state regulatory commissions, in accordance with the requirements of Section and of the Federal Energy Regulatory Commission's Rules of Practice and Procedures. Dated at Colorado Springs, Colorado as of this 29 th day of November, /s/ M. Catherine Rezendes Post Office Box 1087 Colorado Springs, CO (719)

8 Part II: Stmt. of Rates FERC Gas Tariff Section 3 - Fuel and L&U Rates Third Revised Volume No. 1A Version STATEMENT OF RATES FOR TRANSPORTATION OF NATURAL GAS FUEL CHARGES 1/ Collection Volumetric Total Fuel and L&U Period True-up Retention Mainline Fuel: 2.35% 0.07% 2.42% Production Area Fuel: Anadarko Basin: 0.24% 0.09% 0.33% Permian Basin: 0.51% -0.04% 0.47% San Juan Basin: 0.54% 0.38% 0.92% Permian - Anadarko Fuel: 0.11% -0.09% 0.02% Rate Schedule ISS Fuel: 1.54% -0.01% 1.53% Willcox Lateral Incremental Fuel: 2/ 1.50% -0.31% 1.19% L&U: 3/ 0.12% -0.04% 0.08% 1/ The Fuel charges are applicable to the quantity received. The Fuel charge may be discounted by Transporter; provided, however, that the discounted fuel shall not be less than actual fuel incurred. See Section 13 of the GT&C for further information. 2/ New firm service in effect after the in service date of the Willcox Lateral Expansion facilities shall be assessed the Willcox Lateral Incremental Fuel percentage. Issued on: November 29, 2016 Effective on: January 1, 2017

9 Part II: Stmt. of Rates FERC Gas Tariff Section 3 - Fuel and L&U Rates Third Revised Volume No. 1A Version / Transporter shall assess L&U charges only once. As long as Transporter is the sole supplier of quantities to the Willcox Lateral, L&U charges will be assessed on a Shipper s mainline TSA. If, in the future, a third party physically interconnects with the Willcox Lateral, Transporter will assess a Commission-approved L&U charge on the quantities supplied by the third party. Issued on: November 29, 2016 Effective on: January 1, 2017

10 Part II: Stmt. of Rates FERC Gas Tariff Section 3 - Fuel and L&U Rates Third Revised Volume No. 1A Version STATEMENT OF RATES FOR TRANSPORTATION OF NATURAL GAS FUEL CHARGES 1/ Collection Volumetric Total Fuel and L&U Period True-up Retention Mainline Fuel: % 0.07% 2.342% Production Area Fuel: Anadarko Basin: % 0.091% % Permian Basin: 0.515% % % San Juan Basin: 0.548% % % Permian - Anadarko Fuel: 0.121% % 0.024% Rate Schedule ISS Fuel: 1.544% -0.01% 1.543% Willcox Lateral Incremental Fuel: 2/ 1.580% % % L&U: 3/ % % 0.080% 1/ The Fuel charges are applicable to the quantity received. The Fuel charge may be discounted by Transporter; provided, however, that the discounted fuel shall not be less than actual fuel incurred. See Section 13 of the GT&C for further information. 2/ New firm service in effect after the in service date of the Willcox Lateral Expansion facilities shall be assessed the Willcox Lateral Incremental Fuel percentage. Issued on: November 29, 2016 Effective on: January 1, 2017

11 Part II: Stmt. of Rates FERC Gas Tariff Section 3 - Fuel and L&U Rates Third Revised Volume No. 1A Version / Transporter shall assess L&U charges only once. As long as Transporter is the sole supplier of quantities to the Willcox Lateral, L&U charges will be assessed on a Shipper s mainline TSA. If, in the future, a third party physically interconnects with the Willcox Lateral, Transporter will assess a Commission-approved L&U charge on the quantities supplied by the third party. Issued on: November 29, 2016 Effective on: January 1, 2017

12 Docket No. RP17- Appendix Table of Contents Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Fuel and L&U Reimbursement Percentages Summary Fuel Reimbursement Percentages Calculations L&U Reimbursement Percentage Calculations Throughput Interruptible Storage Service Reimbursement Percentage Calculation Operational Purchases and Sales Report

13 Docket No. RP17- Appendix A Fuel and L&U Reimbursement Percentages Summary

14 Docket No. RP Appendix A Schedule 1 Page 1 of 1 Proposed Retention Percentages to be Effective January 1, 2017 Line No. Retention Category Collection Period Percentage Volumetric Trueup Percentage Total Retention Percentage (a) (b) (c) (d) [(b) + (c)] 1 Mainline Fuel (Forward Haul) 1/ 2.35% 0.07% 2.42% 2 Production Area Fuel: 2/ 3 Anadarko Basin 0.24% 0.09% 0.33% 4 Permian Basin 0.51% -0.04% 0.47% 5 San Juan Basin 0.54% 0.38% 0.92% 6 Permian-Anadarko Fuel 3/ 0.11% -0.09% 0.02% 7 Rate Schedule ISS Fuel 4/ 1.54% -0.01% 1.53% 8 Willcox Lateral Incremental Fuel 5/ 1.50% -0.31% 1.19% 9 L&U 6/ 0.12% -0.04% 0.08% Notes: 1/ See Appendix B, Schedule 1, Page 1, Column (b), Lines / See Appendix B, Schedule 1, Page 1, Columns (c), (d), and (f), Lines / See Appendix B, Schedule 1, Page 1, Column (e), Lines / See Appendix E, Schedule 1, Page 1, Column (b), Lines / See Appendix B, Schedule 1, Page 1, Column (g), Lines / See Appendix C, Schedule 1, Page 1, Column (b), Lines

15 Docket No. RP17- Appendix B Fuel Reimbursement Percentages Calculations

16 Docket No. RP Appendix B Schedule 1 Page 1 of 1 Fuel Percentages (Quantities in Dth unless otherwise noted) Line No. Description Mainline System Anadarko Basin Permian Basin Permian-Anadarko San Juan Basin Willcox Lateral Incremental Total (a) (b) (c) (d) (e) (f) (g) (h) Fuel 1 Fuel Gas - October September / 28,787,864 72,211 1,000,500 31,770 16, ,187 30,447,620 2 Current Period Fuel Retention - October September / 27,946,022 48,990 1,109,053 61,096 17, ,571 29,863,841 3 Fuel Retention Deficiency/(Gain) [line 1 - line 2] 841,842 23,221 (108,553) (29,326) (1,022) (142,384) 583,779 4 True-up Quantity Sought in RP Deficiency/(Gain) 3/ 623,244 1,963 (4,154) 7,490 10,633 (103,492) 535,683 5 Remaining Fuel True-up Quantity Sought in RP Deficiency/(Gain) 4/ - (4,908) (28,583) 10,343 4,729 46,451 28,032 6 Net Prior Period Fuel Deficiency/(Gain) [line 4 + line 5] 623,244 (2,945) (32,737) 17,833 15,362 (57,041) 563,715 7 Prior Period Volumetric True-up Retention 5/ 630,696 (5,810) (59,819) 12,868 3,012 (91,120) 489,828 8 Prior Period Fuel True-up Deficiency/(Gain) [line 6 - line 7] (7,452) 2,865 27,082 4,965 12,350 34,078 73,888 9 Net Fuel True-up Deficiency/(Gain) [lines 3 + 8] 834,390 26,086 (81,471) (24,361) 11,328 (108,305) 657, System Throughput - Fuel 6/ 1,198,456,808 29,532, ,219,460 28,606,314 2,944,823 35,294,060 1,491,054, Current Period Fuel Retention Percentage 11/ [line 1 / (line 1 + line 10)] 2.35% 0.24% 0.51% 0.11% 0.54% 1.50% 12 Prior Period Fuel Deficiency 7/ [line 9 / (line 9 + line 10)] 0.07% 0.09% -0.04% -0.09% 0.38% -0.31% 13 Total Fuel Retention Percentage [line 11 + line 12] 2.42% 0.33% 0.47% 0.02% 0.92% 1.19% Notes: 1/ See Appendix B, Schedule 2, Line 13. 2/ See Appendix B, Schedule 2, Line 26. 3/ See EPNG's Annual Recomputation of Fuel and Lost and Unaccounted-for Retention Percentages filing in Docket No. RP The below quantities for each fuel retention category were sought for true-up during the 12-month period commencing January Since only 9 months of the 12-month true-up period have elapsed as of September 2016, EPNG is only reflecting 9/12th of the true-up amount for comparison. The remaining quantities will be reflected in EPNG's next annual FL&U filing. Fuel Category From RP16-229, App B. Sch. 1, Ln. 10 Volumetric True-up Sought in RP Mainline Column (b) 830,992 Anadarko Basin Column (c) 2,617 Permian Basin Column (d) (5,539) Permian-Anadarko Column (e) 9,986 San Juan Column (f) 14,178 Willcox Lateral Column (g) (137,990) 4/ See Appendix B, Schedule 7, Line 3. 5/ See Appendix B, Schedule 2, Page 1, Line / See Appendix D, Schedule 1. 7/ Since fuel is retained at the receipt, fuel experienced (line 1) or Net Fuel True-up

17 Docket No. RP Appendix B Schedule 2 Page 1 of 1 Transportation Fuel Gas (Quantities in Dth) Fuel Gas 1/ Line No. Month Mainline System Anadarko Basin Permian Basin Permian-Anadarko San Juan Basin Willcox Lateral Incremental 2/ Total (a) (b) (c) (d) (e) (f) (g) (h) Pre October ,710 42,710 1 October-15 2,599, ,191 1,576 1,414 38,865 2,723,297 2 November-15 2,335,610 4,427 87,177 1,402 1,075 37,690 2,467,381 3 December-15 2,676,428 6,246 82,134 1,567 1,200 40,131 2,807,706 4 January-16 2,495,277 6,739 78, ,176 40,751 2,623,406 5 February-16 2,161,676 9,219 76,053 6,221 1,190 39,315 2,293,674 6 March-16 2,131,192 6,719 93,915 4,043 1,286 42,589 2,279,744 7 April-16 2,149,918 7,540 80,419 7,084 1,593 42,005 2,288,559 8 May-16 2,057,932 9,040 71,137 2,746 1,352 47,867 2,190,074 9 June-16 2,259,768 4,043 71,437 3,142 1,356 47,028 2,386, July-16 2,619,123 5,994 88,771 3,312 1,563 55,860 2,774, August-16 2,812,019 6,006 86, ,549 53,611 2,960, September-16 2,446,415 5, , ,334 53,475 2,609, Total 28,787,864 72,211 1,000,500 31,770 16, ,187 30,447,620 Current Period Fuel Retention 3/ Month Mainline System Anadarko Basin Permian Basin Permian-Anadarko San Juan Basin Willcox Lateral Incremental Total 14 October-15 2,605,105 6,116 82,891 3,012 1,162 52,931 2,751, November-15 2,367,697 2,955 70,635 6,005 5,873 50,606 2,503, December-15 2,679,815 1,901 74,533 5,164 9,776 56,634 2,827, January-16 2,499,280 1,477 62,369 5, ,938 2,618, February-16 2,175,956 1,519 66,946 9, ,845 2,305, March-16 2,070,482 2, ,065 7, ,129 2,238, April-16 2,056,990 4, ,048 4, ,769 2,228, May-16 2,139,806 6,109 95,547 7, ,961 2,304, June-16 2,262,591 3,402 99,376 2, ,524 2,423, July-16 2,419,317 3, ,669 2, ,817 2,614, August-16 2,493,647 6, ,613 3,313-79,666 2,689, September-16 2,175,335 7, ,361 3, ,752 2,358, Total 27,946,022 48,990 1,109,053 61,096 17, ,571 29,863,841 Volumetric True-up Retention 3/ Month Mainline System Anadarko Basin Permian Basin Permian-Anadarko San Juan Basin Willcox Lateral Incremental Total 27 October-15 - (4,485) (21,742) 1, ,622 (4,095) 28 November-15 - (2,167) (18,527) 2,611 1,013 19,716 2, December-15 - (1,394) (19,550) 2,245 1,685 22,065 5, January-16 77, (14,704) 63, February-16 67, , (14,971) 54, March-16 64, , (13,288) 52, April-16 63, (0) (13,182) 51, May-16 66, ,141 9 (16,183) 51, June-16 70, (16,349) 54, July-16 75, (20,263) 55, August-16 77, (23,457) 54, September-16 67, (21,127) 47, Total 630,696 (5,810) (59,819) 12,868 3,012 (91,120) 489,828 Notes: 1/ See Appendix B, Schedule 3, Page 1, Line 29 for the within basin and the Permian-Anadarko fuel allocations and Line 42 for the total mainline fuel. 2/ See Appendix B, Schedule 6, Line 149 for Willcox Lateral Incremental Fuel. 3/ Includes FL&U amounts retained from shippers using EPNG's capacity on the Mojave system. The retention rates during the collection period were: Mainline System Anadarko Basin Permian Basin Permian-Anadarko San Juan Basin Willcox Lateral Incremental Collection Period Oct 15 - Dec % 0.15% 0.61% 0.23% 0.58% 2.31% Jan 16 - Current 2.27% 0.17% 0.55% 0.21% 0.58% 1.80% Volumetric True-up Oct 15 - Dec % -0.11% -0.16% 0.10% 0.10% 0.90% Jan 16 - Current 0.07% 0.01% 0.00% 0.03% 0.22% -0.53%

18 Docket No. RP Appendix B Schedule 3 Page 1 of 1 Within Basin Gas Used and Allocation Workpaper Total Gas Used by Area 1/ Line No. Description Anadarko Basin Permian Basin San Juan Basin Permian-Anadarko Mainline Total Gas Used (a) (b) (c) (d) (e) (f) (g) 1 October-15 1, , ,170 2,349 2,054,057 2,684,432 2 November-15 10, , ,247 2,090 1,831,388 2,429,691 3 December-15 14, , ,936 2,335 2,161,604 2,767,575 4 January-16 16, , , ,995,693 2,582,655 5 February-16 21, , ,064 9,271 1,662,284 2,254,359 6 March-16 16, , ,933 6,026 1,558,909 2,237,155 7 April-16 17, , ,679 10,557 1,558,881 2,246,554 8 May-16 21, , ,994 4,093 1,544,864 2,142,207 9 June-16 9, , ,692 4,682 1,751,742 2,339, July-16 14, , ,599 4,936 2,010,703 2,718, August-16 14, , , ,214,104 2,906, September-16 13, , , ,839,770 2,556, Total Area Fuel 172,137 4,285,503 3,176,736 47,348 22,183,999 29,865,723 Allocation of Basin Fuel to Mainline 14 Within Basin/Path Fuel Used 2/ 72,210 1,000,501 16, , Total Area Fuel 3/ 172,137 4,285,503 3,176, ,485 Percentage Applicable to Basin/Path 16 [Line 14 / Line 15] 41.9% 23.3% 0.5% 67.1% Within Basin, Permian-Anadarko, and Storage Transactions Fuel Allocation 4/ Month Anadarko Basin Permian Basin San Juan Basin Permian-Anadarko Storage Total Area Fuel 17 October ,191 1,414 1,576-84, November-15 4,427 87,177 1,075 1,402-94, December-15 6,246 82,134 1,200 1,567-91, January-16 6,739 78,886 1, , February-16 9,219 76,053 1,190 6,221-92, March-16 6,719 93,915 1,286 4, , April-16 7,540 80,419 1,593 7,084-96, May-16 9,040 71,137 1,352 2,746-84, June-16 4,043 71,437 1,356 3,142-79, July-16 5,994 88,771 1,563 3,312-99, August-16 6,006 86,879 1, , September-16 5, ,501 1, , Total Area Fuel 72,211 1,000,500 16,088 31,770-1,120,569 Month Mainline Fuel Allocation Area Gas Used Total Gas Used After Allocation Total Mainline Fuel [col (g), lines 1-12] [col (g), lines 17-28] [(b) - (c)] 30 October-15 2,684,432 84,636 2,599, November-15 2,429,691 94,081 2,335, December-15 2,767,575 91,147 2,676, January-16 2,582,655 87,378 2,495, February-16 2,254,359 92,683 2,161, March-16 2,237, ,963 2,131, April-16 2,246,554 96,636 2,149, May-16 2,142,207 84,275 2,057, June-16 2,339,746 79,978 2,259, July-16 2,718,763 99,640 2,619, August-16 2,906,503 94,484 2,812, September-16 2,556, ,668 2,446, Total Mainline Fuel 29,865,723 1,120,569 28,745,154 Notes: 1/ See Appendix B, Schedule 6 for total compressor and other fuel gas consumed. See Appendix B, Schedule 4, Page 1, Line 9 for the basin fuel; See Appendix B, Schedule 5, Page 1, Line 2/ 5 for the Permian-Anadarko fuel. 3/ See Appendix B, Schedule 4, Page 1, Line 1 for the basin fuel total; See Appendix B, Schedule 5, Page 1, Line 3 for the Permian-Anadarko fuel total. 4/ Since a portion of the fuel consumed within a particular basin is attrubitable to the basin's receipts that are transported on the mainline, a portion of the basin fuel is allocated to the mainline, based on a ratio of throughput contained within a basin to total receipts from the same basin. A similar allocation is performed for the Permian-Anadarko fuel. The indicated percentages calculated on line 16 are multiplied by the area fuel detailed in lines 1 through 12. The result is shown on lines 17 through 28.

19 Within Basin Allocation Workpaper Docket No. RP Appendix B Schedule 4 Page 1 of 1 Line No. Description Anadarko Basin Permian Basin San Juan Basin (a) (b) (c) (d) 1 Fuel 1/ 172,137 4,285,503 3,176,736 2 Throughput - Deliveries Sourced From Basin 2/ 58,305, ,773, ,536,215 3 Additional Throughput Volumes 3/ 12,095,600 52,704,403-4 Total Fuel [line 1] 172,137 4,285,503 3,176,736 5 Total Throughput and Fuel Volumes [line 2 + line 3 + line 4] 70,573, ,763, ,712,951 6 Basin Fuel Percentage for Collection Period [line 1 / line 5] 0.24% 0.51% 0.54% 7 Within Basin Volumes Received [line 8 / (1 - line 6)] 4/ 29,604, ,219,961 2,960,910 8 Within Basin Volumes Delivered 5/ 29,532, ,219,460 2,944,823 9 Actual Within Basin Fuel [line 7 - line 8] 6/ 72,210 1,000,501 16,087 Notes: 1/ See Appendix B, Schedule 6, Page 2-3 totals for each basin. 2/ See Appendix D, Schedule 1, Page 1 for deliveries sourced from each basin. 3/ See Appendix D, Schedule 4, Page 1, Line 13. 4/ Within Basin deliveries grossed upward for basin fuel, based on fuel percentage calculated on line 6. 5/ See the deliveries within the basin in Appendix D, Schedule 1, Page 1, Column (d). 6/ Fuel attributable to the transactions within a basin.

20 Permian-Anadarko Allocation Workpaper Docket No. RP Appendix B Schedule 5 Page 1 of 1 Line No. Description Permian-Anadarko (a) (b) 1 Anadarko Basin Fuel 1/ 172,137 2 Permian-Anadarko Fuel 2/ 47,348 3 Total Fuel North & East of Plains [line 1 + line 2] 219,485 4 Less Anadarko Within Basin Fuel 3/ 72,210 5 Permian-Anadarko Fuel [line 3 - line 4] 4/ 147,275 Notes: 1/ See Appendix B, Schedule 6, Page 2, line 96 for Anadarko Basin total. 2/ See Appendix B, Schedule 6, Page 2, line 123 for Permian-Anadarko total. 3/ See Appendix B, Schedule 4, Page 1, Column (b), Line 9. 4/ Total fuel north and east of the Plains compressor station less the portion of fuel applicable to transactions within the Anadarko Basin.

21 Docket No. RP Appendix B Schedule 6 Page 1 of 3 Line No. Fuel Consumption Location (a) Compressor Fuel - FERC Accounts Location Quantity (Dth) State County Oct-15 Nov-15 Dec-15 Jan-16 Feb-16 Mar-16 Apr-16 May-16 Jun-16 Jul-16 Aug-16 Sep-16 Total (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m) (n) (o) (p) 1 Mainline AFTON COMPRESSOR NM NM DONA ANA - 19,616 8, , , AFTON STA EXP NEW MEXICO NM DONA ANA ALAMO LAKE TURBINE STATION FUEL AZ LA PAZ 47,710 3,259 3,968 2,263 4,062 43,670 54,778 54,579 60,166 59,224 58,636 55, , ALAMO TURBINE STATION AZ LA PAZ 14,807 8,488 23,603 5, ,135 14,841 12,478 21,150 33,393 33,395 32, , BALCK RIVER GENERATOR FUEL (ROTARY) TX CULBERSON BELEN AUXILIARY FUEL NM VALENCIA BELEN EXPANSION GAS NM VALENCIA BELEN TURBINE FUEL NM VALENCIA BLACK RIVER GENERATOR FUEL (ORIFICE) TX CULBERSON 69,588 50,629 74,542 77,629 54,369 65,423 54,471 68,508 61,751 61,048 56,967 59, , BOWIE COMP EXPAN GAS AZ COCHISE , BOWIE COMPRESSOR FUEL AZ COCHISE 32,781 32,108 37,418 35,527 25,760 3,741-1,371 7,350 10,471 15,383 1, , CASA GRANDE A PLANT FUEL AZ PINAL , , CASA GRANDE TURBINE EXPANSION FUEL AZ PINAL 26,071 23,681 33,408 33,263 15, , CASA GRANDE TURBINE FUEL AZ PINAL 164-5, , CASTLE DOME TURB STATION AZ LA PAZ CIMARRON AUXILARY FUEL AZ COCHISE 13,687 23,156 22,821 12,850 3,458 4,600 3,137 6,626 2,593 15,826 22,165 22, , CIMARRON TURBINE FUEL AZ COCHISE 66,974 68,250 69,469 71,139 21,350 29,977 60,394 53,822 63,945 72,367 72,865 66, , CORNUDAS A PLT COMP TX HUDSPETH 94,687 84, , , ,656 88,241 57,805 59, , , ,964 83,823 1,168, CORNUDAS B COMP TX HUDSPETH 74,295 78,526 75,018 83,973 73,554 16,378 16,867 63,441 69,282 66,837 75,322 55, , CORNUDAS B EXPANSION TEX TX HUDSPETH CORNUDAS STA EXP TEXAS TX HUDSPETH , DAG RETAINED BURN BY MOJAVE AZ MOHAVE 138, , ,045 94,145 89, , , , , , , ,003 1,530, DEMING B PLANT COMP FUEL NM LUNA DEMING COMPRESSOR NM NM LUNA DILCON B TURBINE FUEL AZ NAVAJO , ,650 7, DILKON COMPRESSOR ARIZONA AZ NAVAJO DUTCH FLAT TURBINE FUEL AZ MOHAVE 28, ,011 55,868 35,448 47,524 63,067 63,025 63, , E.P. D PLANT 2000 TURBINE FUEL TX EL PASO 70,274 69,224 64,873 75,825 49, ,772 67,644 52,992 46,548 70,092 64, , EL PASO C PLANT TX EL PASO 52,874 52,725 55,272 55,732 49,673 46,441 13,887-6,587 35,036 50,508 47, , EL PASO C PLANT EXPANSION TX EL PASO 271 2,674 7,970 9,611 4, , EL PASO C PLANT FUEL TX HUDSPETH 97,722 89,600 90,334 95,962 76,445 76,556 56,052 62,702 77,705 91,774 96,680 83, , EL PASO D PLANT FUEL TX EL PASO - 1, ,467 43,644 30,265-4,852 17, , , FLAGSTAFF COMP AND AZ COCONINO 1,670 1,851 2,045 2,132 1,856 1,870 1, , FLORIDA B PLT COMP FUEL NM LUNA 49,430 46,270 58,365 56,267 46,788 4, ,458 16,683 30,434 18, , FLORIDA B PLT EXP GAS NM LUNA , FLORIDA C PLANT COMPRESSOR FUEL NM LUNA 72,841 72,338 76,298 78,164 52,302 63,039 69,959 61,075 64,748 67,360 67,851 66, , FLORIDA COMPRESSOR NM NM LUNA 11,288 6,290 34,726 21,792 13,740 3,292 10,917 9,122 21,745 62,650 54,021 17, , FLORIDA STATION EXP NM NM LUNA , GRESHAM EXPANSION GAS TX CULBERSON ,873 3,968 2, , GRESHAM TURBINE FUEL TX CULBERSON 31,470 39,879 68,362 71,846 35, ,067 3,569 11, , GUADALUPE GENERATOR FUEL TX CULBERSON 1,005 1, ,233 1,281 1,251 1,231 8, GUADALUPE TURBINE FUEL AT TX CULBERSON 1 4,038 43, , , HACKBERRY EXPANSION GAS AZ MOHAVE HACKBERRY TURBINE FUEL AZ MOHAVE 99,736 93,068 80,095 56,171 63,811 52,472 99,858 68,921 74,078 42,732 71,442 64, , HUECO COMPRESSOR TX TX HUDSPETH 86, , , ,213 94,592 93,033 83,267 75,663 81, , ,570 99,727 1,223, HUECO STA EXP TEXAS TX HUDSPETH , LAGUNA AUX FUEL NM NM CIBOLA , LAGUNA COMPRESSOR FUEL NM CIBOLA ,700 7,712 6, ,030 9,078 11,474 43, LEUPP A COMPRESSO AZ AZ COCONINO 110,033 99,831 98, ,354 86,308 80,834 66,497 82,063 82,108 77,785 66,723 88,226 1,045, LEUPP AUX TURBINE FUEL AZ COCONINO 3,810 5, ,638 5,708 5,030 3,485 29, LEUPP C PLT TURBINE FUEL AZ COCONINO 8,101 18,077 23,363 19, , ,225 1,852 15,723 34,960 31, , LEUPP D TURBINE FUEL AZ COCONINO 64,748 31,251 32,206 22,074 58,642 61,429 57,743 2,410 52,704 53,833 13, , LINCOLN AUX FUEL NM LINCOLN LINCOLN TURBINE FUEL NM LINCOLN , , LORDSBURG B PLT COMP FUEL NM HIDALGO 5,987 13,957 57,629 55,261 49,825 42,477 7,017 38,948 31,956 48,402 52,659 47, , LORDSBURG B PLT EXPANSION NM HIDALGO ,259 1,176 6,188 2,791 4, ,227 22, LORDSBURG C PLANT AUXILARY FUEL NM HIDALGO LORDSBURG C PLANT COMPRESSOR FUEL NM HIDALGO 73,845 72,249 67,025 76,541 53,027 41,899 62,497 65,908 69,616 63,398 62,314 56, , LORDSBURG COMPRESSOR NM NM HIDALGO LORDSBURG STA EXP NM NM HIDALGO 1-1, , NAVAJO C PLT TURBINE FUEL AZ APACHE ,825 2, , NAVAJO D PLT TURBINE FUEL AZ APACHE 40,677 6,581 31,843 29,723 5,522 8,441 18,806 15,623 24,545 10,920 54,401 46, , ORACLE COMP FUEL AZ PINAL 81,335 78,712 76,981 80,226 74,503 36, ,599 26,980 35,207 78,184 42, , ORACLE EXPANSION GAS AZ PINAL ,591

22 Docket No. RP Appendix B Schedule 6 Page 2 of 3 Line No. Fuel Consumption Location (a) Compressor Fuel - FERC Accounts Location Quantity (Dth) State County Oct-15 Nov-15 Dec-15 Jan-16 Feb-16 Mar-16 Apr-16 May-16 Jun-16 Jul-16 Aug-16 Sep-16 Total (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m) (n) (o) (p) PICACHO COMPRESSOR STATION AZ PINAL ROSWELL AUX FUEL NEW MEX NM CHAVES ROSWELL COMP UNIT #1 NM CHAVES ROSWELL COMP UNIT #2 NM CHAVES - - 2,075-4,243 11,125 1, ,634-22, ROSWELL COMP UNIT #3 NM CHAVES ,264-3, ,407 1,437 3,284-12, SAN SIMON COMPRESSOR FUEL AZ AZ COCHISE 1,330 9,967 25,311 5,445 12,386 1,382 2,696 5,956 4,181 4,066 10,475-83, SAN SIMON STA EXP AZ AZ COCHISE , SELIGMAN C TURBINE FUEL AZ YAVAPAI - 8,029 27,934 38,219 4,708 1,793 9, ,638 23,011 28, , SELIGMAN TURBINE FUEL AZ YAVAPAI 15,918 3,773 1,714-1,424 2,433 1, , TOM MIX TURBINE AZ PINAL 98,658 80,028 82,462 79,153 56,589 58,786 77,347 61,811 65,018 78,687 89,744 61, , TUCSON COMP. ARIZONA AZ PIMA TUCSON ST. AUXILARY ARIZONA AZ PIMA VAIL COMPRESSOR ARIZONA AZ PIMA VAIL STA EXP AZ AZ PIMA WASHINGTON RANCH TOTAL PLANT FUEL NM EDDY 33,428 35,611 28,111 3,723 7,517 27,656 19,497 28,039 15,529 9,417 11,491 11, , WENDEN TURBINE FUEL AZ LA PAZ 53,467 23,899 54,322 51,253 51,189 43,974 52,997 53,401 51,030 51,558 53,572 53, , WENDEN TURBINE FUEL AZ LA PAZ 11,919 11, ,248 30,721 17,171 23,068 29,763 28,451 15, , WILCOX COMPRESSOR TURBIN AZ COCHISE WILCOX TURBIN EXPANSION AZ COCHISE WILLIAMS AUX GEN ARIZONA AZ COCONINO WILLIAMS B PLANT COMPRESSOR FUEL AZ AZ COCONINO 44,700 47,919 49,245 51,504 37,464 32,274 36,990 38,194 44,430 19, , WILLIAMS C PLT FUEL GAS AZ COCONINO 112,530 62,061 59,780 25,127 86, , , , , , , ,295 1,192, WINK TURBINE FUEL TX WINKLER 37,233 38,219 74,253 76,062 85,108 90,018 97,921 78,733 83,835 93, ,604 78, , FERC Account 812 Usage 69,635 50,778 53,577 86,662 65,852 47,543 54,321 45,011 76,029 73, , , , Total Mainline 2,054,057 1,831,388 2,161,604 1,995,693 1,662,284 1,558,909 1,558,881 1,544,864 1,751,742 2,010,703 2,214,104 1,839,770 22,183, Anadarko #3 TURBINE FUEL SCHAFER TX CARSON DUMAS PLANT FUEL TX MOORE ,732 11,472 9,963 15, , SCHAFER TURBINE FUEL TX CARSON 1,072 10,522 14,821 15,994 4,891 3,987 7,872 5,841 8,957 13,447 14,318 13, , FERC Account 812 Usage , Total Anadarko 1,084 10,554 14,890 16,064 21,976 16,016 17,975 21,549 9,638 14,288 14,318 13, , Permian AUXILIARY NEW MEXICO NM LEA B PLANT TURBINE FUEL NM LEA 62-1, ,485 28,292 30,185 19,602 6,567 3,675 13,548 9, , CAPROCK COMPRESSOR NM NM LEA CAPROCK EXP GAS NM NM LEA EUNICE C PLANT NM LEA 60,344 60,347 63,302 73,209 61,882 44,843 47,963 38,987 60,067 84,930 75,014 64, , GE TURBINE FUEL TEXAS TX REEVES 48,381 48,699 47,132 49,882 48,428 51,289 49,121 39,803 37,681 34,358 35, , , KEYSTONE B TX WINKLER 20,585 20,143 26,872 24,613 24,407 29,178 27,104 28,578 24,052 16,003 19,301 25, , KEYSTONE ML COMP TEXAS TX WINKLER 60,431 75,219 72,383 60,232 49,578 60,138 54,516 62,331 55,264 61,000 57,417 47, , M/L COMP FUEL NM LEA MONUMENT A AUXILIARY NM NM LEA MONUMENT A COMPRESSOR NM NM LEA 25,461 23,803 23,570 23,241 21,886 25,432 19,137 16,298 18,557 19,617 16,491 17, , PECOS RIVER COMPRESSOR NM NM EDDY 120,633 91, ,769 99, ,475 90,340 71,127 61,808 63, , , ,375 1,133, PECOS RIVER STA AUX NM EDDY , PECOS RIVER STA EXP NM NM EDDY ,161 2,300 1, , PLAINS AUXILIARY TEXAS TX YOAKUM , , PLAINS COMPRESSOR TEXAS TX YOAKUM PUCKETT PLT COMP FUEL TEX TX PECOS 8,765 11,508 1,841 1,695 7,732 9,043 10,540 4,180 2,480 3,460 8,719 12,267 82, WAHA SOLAR FUEL TX REEVES , ,463 6,205 2, , FERC Account 812 Usage 2,518 40,574 11,856 2,896 3,718 62,118 34,004 32,460 32,505 37,435 32,883 30, , Total Permian 347, , , , , , , , , , , ,048 4,285, Permian-Anadarko COMPRESSOR FUEL TEXAS TX RANDALL , , , DIMMITT AUX TEXAS TX LAMB , DIMMITT COMPRESSOR TEXAS TX LAMB 2,153 1,658 1, ,604 4,099 1,880 3,345 2, , FERC Account 812 Usage ,677 8, , , Total Permian-Anadarko 2,349 2,090 2, ,271 6,026 10,557 4,093 4,682 4, , San Juan A PLANT COM FUEL NM NM SAN JUAN 20,155 17,893 18,907 18,566 16,801 18,011 17,636 21,649 22,283 23,582 23,533 22, , BLANCO MISC FUEL NM SAN JUAN ,690

23 Docket No. RP Appendix B Schedule 6 Page 3 of 3 Line No. Fuel Consumption Location (a) Compressor Fuel - FERC Accounts Location Quantity (Dth) State County Oct-15 Nov-15 Dec-15 Jan-16 Feb-16 Mar-16 Apr-16 May-16 Jun-16 Jul-16 Aug-16 Sep-16 Total (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m) (n) (o) (p) BLUEWATER TURBINE FUEL NM MCKINLEY ,438 1,524-7, BONDAD TURBINE FUEL CO LA PLATA 75,819 59,152 60,830 60,378 62,493 65,759 76,835 69,270 74,009 74,500 85,210 79, , GALLUP COMP STA B PLT NM MCKINLEY GALLUP COMP STA B PLT NM MCKINLEY GALLUP C PLANT COMPRESSOR FUEL NM MCKINLEY RIO VISTA AUX GEN FUEL NM SAN JUAN RIO VISTA CENTAR FUEL NM SAN JUAN 13,093 16, ,712 22,884 7,976 22,350 17,755 14, , RIO VISTA EXPANSION GAS NM SAN JUAN RIO VISTA SATURN FUEL NM SAN JUAN 7,774 4,898 16,098 16,828 16,703 18,397 8,347-10, ,782 5, , SJ ML TURBINE FUEL NM SAN JUAN WHITE ROCK EXPANSION GAS NM SAN JUAN 2, ,442-1,551 4,526 4,576 2,177 20, WHITE ROCK TURBINE FUEL NM SAN JUAN 16,608 4,378 16,173 3,086 4,138 27,135 55,363-26,605 61,435 64,140 27, , WINDOW ROCK A PLANT AZ APACHE 116, , , , , , , ,961 96, , ,589 98,525 1,303, WINDOW ROCK EXPAN FUEL AZ APACHE WINDOW ROCK PLANT AZ APACHE 4,663 4,873 5,169 4,727 4,395 4,688 4,842 5,242 5,253 4,960 4,250 4,235 57, W R TURBINE 7A COMP FUEL AZ APACHE 17, ,487 28,150 5,505 19,590 3,335-1,750 84, FERC Account 812 Usage 4,156 3,435 3,327 3,599 3,745 3,522 3,389 35,481 3,940 2,386 2,404 8,217 77, Total San Juan 279, , , , , , , , , , , ,405 3,176, Willcox Lateral Incremental Fuel WILCOX COMPRESSOR TURBIN AZ COCHISE 38,865 37,690 40,131 40,625 39,315 42,307 41,961 47,820 47,028 55,790 53,566 53, , WILCOX TURBIN EXPANSION AZ COCHISE FERC Account 812 Usage Total Willcox Lateral Incremental Fuel 38,865 37,690 40,131 40,751 39,315 42,589 42,005 47,867 47,028 55,860 53,611 53, ,187

24 Docket No. RP Appendix B Schedule 7 Page 1 of 1 RP Prior Period True-up (Quantities in Dth unless otherwise noted) Willcox Lateral Line No. Description Mainline System Anadarko Basin Permian Basin Permian-Anadarko San Juan Basin Incremental Total (a) (b) (c) (d) (e) (f) (g) (h) 1 Fuel Deficiency/(Gain) Reported in RP / 4,560,875 (19,633) (114,329) 41,374 18, ,804 4,673,008 2 Portion Included in RP / 4,560,875 (14,725) (85,746) 31,031 14, ,353 4,644,976 3 Remaining Fuel True-up Quantities - Deficiency/(Gain) [line 1 - line 2] - (4,908) (28,583) 10,343 4,729 46,451 28,032 Notes: 1/ See EPNG's Annual Recomputation of Fuel and Lost and Unaccounted-for Retention Percentages filing in Docket No. RP , Appendix B, Schedule 1, Page 1, Line 9. 2/ See EPNG's Annual Recomputation of Fuel and Lost and Unaccounted-for Retention Percentages filing in Docket No. RP , Appendix B, Schedule 1, Page 1, Line 4.

25 Docket No. RP17- Appendix C L&U Reimbursement Percentage Calculations

26 L&U Percentage (Quantities in Dth unless otherwise noted) Docket No. RP Appendix C Schedule 1 Page 1 of 1 Line No. Description L&U (a) (b) 1 L&U Experienced 1/ 1,785,840 2 Current Period L&U Retention 2/ 1,538,448 3 L&U Retention Deficiency/(Gain) [line 1 - line 2] 247,392 4 L&U True-up Quantity Sought in RP Deficiency/(Gain) 3/ (905,340) 5 Remaining L&U True-up Quantities Sought in RP Deficiency/(Gain) 4/ (489,404) 6 Net Prior Period L&U Deficiency/(Gain) [line 4 + line 5] (1,394,744) 7 Prior Period Volumetric True-up Retention 5/ (1,538,448) 8 Prior Period L&U True-up Deficiency/(Gain) [line 6 - line 7] 143,704 9 L&U Deferred from Past Filings 6/ (1,000,000) 10 Net L&U True-up Deficiency/(Gain) [line 3 + line 8 + line 9] (608,904) 11 System Deliveries - L&U 7/ 1,457,445, Current Period L&U Retention Percentage 8/ [line 1 / (line 1 + line 11)] 0.12% 13 Prior Period L&U Deficiency [line 10 / (line 10 + line 11)] -0.04% 14 Total L&U Retention Percentage [line 12 + line 13] 0.08% Notes: 1/ See Appendix C, Schedule 2, Page 1, Column (b), Line 14. 2/ See Appendix C, Schedule 2, Page 1, Column (b), Line 27. 3/ See EPNG's Annual Recomputation of Fuel and Lost and Unaccounted-for Retention Percentages filing in Docket No. RP , Appendix C, Schedule 1, Line 12. An over-collection of 1,207,120 Dth was sought for true-up. Since only 9 months of the 12-month true-up period has passed as of September 2016, 9/12ths of this under recovery is included here. The 4/ See EPNG's Recomputation of Fuel and Lost and Unaccounted-for Retention Percentages filing in Docket No. RP15-220, Appendix C, Schedule 1, Line 10. An over-collection balance of 1,957,622 Dth was sought for true-up during the period of January 2015 through December 2015 and EPNG reflected 1,468,217 Dth of that amount in RP This filing reflects the remaining L&U True-Up deficiency quantities. 5/ See Appendix C, Schedule 2, Column (b), Line 40. 6/ L&U over-collection deferred in Docket No. RP so that the total L&U in that filing would not be less than zero. See Docket No. RP16-229, Appendix C, Schedule 1, Line 11. 7/ See Appendix D, Schedule 1, Page 1, Column (e), Line 6. 10/ Since L&U is retained at the receipt, L&U experienced (line 1) or True-up (line 7) is added, as applicable, to system deliveries (line 11) to determine a receipt quantity.

27 Lost and Unaccounted For Gas Docket No. RP Appendix C Schedule 2 Page 1 of 1 Actual L&U Line No. Month Quantity (Dth) (a) (b) 1 Pre October 15 58,756 2 October ,980 3 November ,511 4 December ,989 5 January ,526 6 February-16 39,934 7 March-16 (57,145) 8 April ,045 9 May , June-16 20, July , August , September , Total 1,785,840 Current Period L&U Retention 1/ Quantity Month (Dth) 15 October , November , December , January , February , March , April , May , June , July , August , September , Total 1,538,448 Volumetric True-up L&U Retention 2/ Quantity Month (Dth) 28 October-15 (194,467) 29 November-15 (176,015) 30 December-15 (196,385) 31 January-16 (110,777) 32 February-16 (100,673) 33 March-16 (103,215) 34 April-16 (103,139) 35 May-16 (105,105) 36 June-16 (106,743) 37 July-16 (116,765) 38 August-16 (118,817) 39 September-16 (106,347) 40 Total (1,538,448) Notes: 1/ Reflects current period retention of 0.15% during the October - December 2015, and 0.09% during the January - September 2016 period. 2/ Reflects volumetric true-up retention of -0.15% during the October - December 2015, and -0.09% during the January - September 2016 period.

28 Docket No. RP17- Appendix D Throughput

29 Summary of System Throughput Docket No. RP Appendix D Schedule 1 Page 1 of 1 Line No. Annual Delivered Quantities (Dth) Supply Receipt Area Backhaul and Other No-Fuel Transactions 1/ Mainline, Forward Haul Production Area Transactions Total (a) (b) (c) (d) (e) 1 Anadarko Basin - 28,773,067 29,532,729 58,305,796 2 California 734, ,250-1,223,465 3 Permian Basin 951, ,603, ,219, ,773,946 4 Permian-Anadarko ,606,314 28,606,314 5 San Juan Basin - 578,591,392 2,944, ,536,215 6 Total 1,685,602 1,198,456, ,303,326 1,457,445,736 7 Willcox Lateral Incremental 35,294,060 35,294,060 Notes: 1/ See Appendix D, Schedule 3, Pages 1 and 3 for details on the backhaul and other no-fuel consuming transactions.

30 Docket No. RP Appendix D Schedule 2 Page 1 of 1 System Throughput Detail Line No. Item Oct-15 Nov-15 Dec-15 Jan-16 Feb-16 Mar-16 Apr-16 May-16 Jun-16 Jul-16 Aug-16 Sep-16 Total Monthly Average (a) (b) (c) (d) (e) (f) (g) (h) (i) (j) (k) (l) (m) (n) (o) Mainline 1 Forward Haul 110,438, ,216, ,264, ,341,927 94,230,941 89,135,312 88,519,434 92,017,564 97,222, ,121, ,287,041 93,661,142 1,198,456,808 99,871,401 2 No Fuel Consumed 55,639 8,276 79, ,235 54,260 49, ,215 61,185 Within Anadarko Basin 3 Forward Haul 4,055,199 1,944,541 1,268, , ,281 1,507,170 2,490,417 3,586,419 1,986,717 2,338,987 4,017,086 4,588,948 29,532,729 2,461,061 4 No Fuel Consumed Within Permian Basin 5 Forward Haul 13,523,114 11,495,980 12,136,056 11,270,033 12,080,329 20,424,430 21,159,377 17,253,605 17,944,037 21,771,623 19,039,593 18,121, ,219,460 16,351,622 6 No Fuel Consumed 66,084 55, ,965 84,999 49,915 36,084 34,920 96, ,775 36,084 36,084 34, ,387 79,282 Within San Juan Basin 7 Forward Haul 200,359 1,009,251 1,677,447 3,609 19,598 18,225 4,500 4,700 3,874 1,490-1,770 2,944, ,402 8 No Fuel Consumed Permian-Anadarko 9 Forward Haul 1,306,084 2,613,210 2,241,858 2,519,625 4,594,252 3,562,330 2,390,411 3,824,431 1,281, ,750 1,585,255 1,705,466 28,606,314 2,383, Total 129,644, ,343, ,923, ,085, ,859, ,683, ,599, ,782, ,603, ,738, ,019, ,162,878 1,457,445, ,453,813 Willcox Lateral Incremental 1/ 11 Forward Haul 2,218,533 2,120,618 2,372,820 2,737,750 2,787,710 2,473,996 2,454,253 3,013,304 3,044,151 3,772,886 4,368,403 3,929,636 35,294,060 2,941,172 Notes: 1/ Only includes Willcox Lateral transactions subject to the incremental fuel rate.