Northern Natural Gas Company P.O. Box 3330 Omaha, NE 68103-0330 402 398-7200 February 12, 2016 Ms. Kimberly D. Bose, Secretary Federal Energy Regulatory Commission 888 First Street N.E. Washington, D.C. 20426 Re: Northern Natural Gas Company Docket No. RP16- -000 Notice of Penalty and DDVC Revenue Crediting Report Dear Ms. Bose: Pursuant to Section 57 of the General Terms and Conditions of Northern Natural Gas Company’s (Northern) F.E.R.C. Gas Tariff (Tariff), Northern hereby submits for filing a report of the penalty and daily delivery variance charge (DDVC) revenues for the period November 1, 2014 through October 31, 2015 that have been credited to shippers. Shippers received the credit on their variance invoices posted to Northern’s website on February 11, 2016. The credited dollars include interest calculated in accordance with the Commission’s regulations pursuant to 18 C.F.R. 154.501(d) through the date the credits were posted to the shippers’ accounts. Northern is herein filing supporting schedules for each of the DDVC and penalty categories. The schedules detail: (1) DDVC or penalty dollars collected by month; (2) interest on the dollars collected; and (3) the calculation of the credit amounts for each shipper as provided for in Section 57 of the General Terms and Conditions of Northern’s Tariff. This filing is consistent with Docket No. RP15-454-000 filed on February 12, 2015 for the previous penalty revenue crediting period. Daily Deliverance Variance Charges (DDVC) Northern collected DDVC revenues in the amount of $785,177.16 plus interest of $21,298.81 for a total DDVC credit of $806,475.97. Northern prorated the DDVC credit to each shipper based on a weighted value equal to the shipper’s total annual scheduled volume at the delivery points on Northern’s system where each shipper took the swing (Scheduled Tolerance Volume), multiplied by a percentage equal to 100% minus the percent of the total DDVC dollars paid by each shipper for the year. Delivered volumes Ms. Bose, Secretary February 12, 2016 Page 2 that were not subject to DDVCs were not included in the calculations of the DDVC credits. Attachment A, Schedules 1, 2 and 3, provide the detailed calculations by shipper. Receipt Point and Supply Shortfall and Excess Penalties Northern did not collect any penalty revenue for this category. PDD Rollover Charge Northern did not collect any penalty revenue for this category. Unauthorized Gas Northern did not collect any penalty revenue for this category. Service Northern has served an electronic copy of this filing upon its customers and interested state regulatory commissions. Ms. Bose, Secretary February 12, 2016 Page 3 Communication It is requested that all correspondence and communications concerning this filing be served upon each of the following: Laura Demman Vice President, Regulatory And Government Affairs Northern Natural Gas Company 1111 South 103rd Street Omaha, NE 68124-1000 (402) 398-7278 laura.demman@nngco.com Thomas Knight Steve Stojic Jennifer Brough Locke Lord LLP 701 8th Street N.W., Suite 700 Washington, D.C. 20001 (202) 220-6922 tknight@lockelord.com steve.stojic@lockelord.com jbrough@lockelord.com Greg Porter Vice President, General Counsel & Chief Compliance Officer Dari R. Dornan Senior Counsel Northern Natural Gas Company 1111 South 103rd Street Omaha, NE 68124-1000 (402) 398-7077 greg.porter@nngco.com dari.dornan@nngco.com Respectfully submitted, /s/ Laura Demman Vice President, Regulatory and Government Affairs Attachments ATTACHMENT A Northern Natural Gas Company Annual Penalty Revenue Crediting Daily Delivery Variance Charges For the period November 2014 - October 2015 Penalty Type [a] NEGATIVE DDVC NEGATIVE DDVC NEGATIVE DDVC NEGATIVE DDVC NEGATIVE DDVC NEGATIVE DDVC NEGATIVE DDVC NEGATIVE DDVC NEGATIVE DDVC NEGATIVE DDVC NEGATIVE DDVC NEGATIVE DDVC TOTAL NEGATIVE DDVC [b] 201411 201412 201501 201502 201503 201504 201505 201506 201507 201508 201509 201510 Total: Volume MMBTU [c] 80,266 45,070 65,485 70,396 76,017 64,130 56,778 46,691 40,755 252,776 88,433 22,023 908,820 POSITIVE DDVC POSITIVE DDVC POSITIVE DDVC POSITIVE DDVC POSITIVE DDVC POSITIVE DDVC POSITIVE DDVC POSITIVE DDVC POSITIVE DDVC POSITIVE DDVC POSITIVE DDVC POSITIVE DDVC TOTAL POSITIVE DDVC 201411 201412 201501 201502 201503 201504 201505 201506 201507 201508 201509 201510 Total: 73,072 17,858 93,581 96,606 53,319 34,266 36,940 32,024 33,214 29,829 49,316 41,964 591,989 44,575 14,499 73,860 84,902 35,963 8,656 9,331 8,089 8,390 7,535 12,457 10,600 $318,857.88 PUNITIVE DDVC PUNITIVE DDVC PUNITIVE DDVC PUNITIVE DDVC PUNITIVE DDVC PUNITIVE DDVC PUNITIVE DDVC PUNITIVE DDVC PUNITIVE DDVC PUNITIVE DDVC PUNITIVE DDVC PUNITIVE DDVC TOTAL PUNITIVE DDVC 201411 201412 201501 201502 201503 201504 201505 201506 201507 201508 201509 201510 Total: 16,459 16,654 15,718 17,737 17,834 6,987 10,714 13,483 7,712 10,170 10,618 11,969 156,055 10,064 16,292 60,585 48,183 18,174 1,765 2,706 3,406 1,948 2,569 2,682 3,023 $171,397.32 Total: 1,656,864.00 $785,177.16 TOTAL PENALTIES Month Schedule 1 Amount $ [d] 48,967 24,537 26,032 8,864 42,140 16,199 14,342 11,794 10,295 63,851 22,338 5,563 $294,921.96 Schedule 2 Northern Natural Gas Company Annual Penalty Revenue Crediting Daily Delivery Variance Charge Revenue Credit Interest Calculation For the period November 2014 - October 2015 Month (a) 201411 201412 201501 201502 201503 201504 201505 201506 201507 201508 201509 201510 201511 201512 201601 201602 Penalty Amount Collected (b) /1 $ 103,605.87 55,328.35 160,476.84 141,948.96 96,277.20 26,619.61 26,379.27 23,289.19 20,632.69 73,955.10 37,477.59 19,186.49 $785,177.16 FERC Interest (c) Days For First Invoice Month (d) /2 Days Full Month (e) Partial Month Interest (f) = d * c / 365 Full Month Interest (g) = e * c / 365 % 3.250 % 3.250 % 3.250 % 3.250 % 3.250 % 3.250 % 3.250 % 3.250 % 3.250 % 3.250 % 3.250 % 3.250 % 3.250 % 3.250 % 3.250 % 10 6 6 9 8 6 9 9 8 7 9 8 31 29 31 30 31 30 31 31 30 31 30 31 31 11 0.0009 0.0005 0.0005 0.0008 0.0007 0.0005 0.0008 0.0008 0.0007 0.0006 0.0008 0.0007 0.0028 0.0026 0.0028 0.0027 0.0028 0.0027 0.0028 0.0028 0.0027 0.0028 0.0027 0.0028 0.0028 0.0010 Interest For First Month Billed (h) /3 Interest For Full Month (i) /4 Total Interest (j) h+i Cumulative Balance (k) /5 $ $ $ $ 93.25 27.66 80.24 113.56 67.39 13.31 21.10 18.63 14.44 44.37 29.98 13.43 290.36 413.47 894.62 1,250.84 1,566.75 1,582.66 1,727.74 1,792.95 1,784.62 2,072.88 2,100.03 2,231.54 2,249.59 803.40 $537.36 $20,761.45 93.25 318.02 493.71 1,008.18 1,318.23 1,580.06 1,603.76 1,746.37 1,807.39 1,828.99 2,102.86 2,113.46 2,231.54 2,249.59 803.40 $21,298.81 Footnotes 1/ Sum of all DDVC penalties by month. See Schedule 1. 2/ The first month of interest is based on days from invoice due date to the end of the month. 3/ Penalty Amount from prior month * Partial month interest rate. 4/ Cumulative Balance from prior month * Full Month Interest rate. 5/ Penalty Amount (b) from Prior Month plus Cumulative balance (k) from Prior Month plus interest (j) from previous quarters. 0.00 103,699.12 159,027.47 319,504.31 463,273.18 559,550.38 586,169.99 617,051.31 640,340.50 660,973.19 740,311.04 777,788.63 796,975.12 803,422.98 803,422.98 806,475.97 $806,475.97 Schedule 3 Northern Natural Gas Company Daily Delivery Variance Charge Revenue Credit Report For the period November 2014 - October 2015 Scheduled STV * Percent of Total Inverse DDVCs Tolerance Inverse Weighted Factor DDVCs paid Volume (STV) DDVCs paid (Payback Percent) (b) 7,440.14 44.20 692.45 7,875.67 14,299.92 949.26 1,059.15 83,658.37 (c) 0.94757468 % 0.00562930 % 0.08819029 % 1.00304370 % 1.82123484 % 0.12089756 % 0.13489312 % 10.65471263 % (d) = 100% - c 99.05242532 % 99.99437070 % 99.91180971 % 98.99695630 % 98.17876516 % 99.87910244 % 99.86510688 % 89.34528737 % (e) 2,468,909 1,330,463 60,891 2,702,963 2,393,291 1,643,216 70,417,659 11,801,693 (f) = d*e 2,445,514 1,330,388 60,837 2,675,851 2,349,703 1,641,229 70,322,670 10,544,256 (g) = f / Sum(f) 0.28931936 % 0.15739309 % 0.00719739 % 0.31656965 % 0.27798433 % 0.19416750 % 8.31960482 % 1.24745040 % Penalty Credit (h) = (g) * credit amount 2,333.29 1,269.34 58.05 2,553.06 2,241.88 1,565.91 67,095.61 10,060.39 57.97 0.00738305 % 99.99261695 % 203,961 203,945 0.02412795 % 194.59 3,683.95 868.12 0.00 6,073.52 54,386.48 0.46918711 % 99.53081289 % 0.11056358 % 99.88943642 % 0.00000000 % 100.00000000 % 0.77352225 % 99.22647775 % 6.92665080 % 93.07334920 % 1,565,381 1,374,103 105,483 1,970,395 151,229,453 1,558,036 1,372,583 105,483 1,955,153 140,754,316 0.18432525 % 0.16238502 % 0.01247929 % 0.23130664 % 16.65210217 % 1,486.54 1,309.60 100.64 1,865.43 134,295.20 CENTERPOINT ENERGY SERVICES, INC. (MN) 27,219.35 3.46665076 % 96.53334924 % 21,434,136 20,691,089 2.44788322 % 19,741.59 CF INDUSTRIES NITROGEN, LLC 18,210.14 426.54 299.01 46.26 131.76 0.00 188.08 0.00 41.48 89.06 0.00 2.31923965 % 97.68076035 % 0.05432405 % 99.94567595 % 0.03808185 % 99.96191815 % 0.00589166 % 99.99410834 % 0.01678093 % 99.98321907 % 0.00000000 % 100.00000000 % 0.02395383 % 99.97604617 % 0.00000000 % 100.00000000 % 0.00528288 % 99.99471712 % 0.01134266 % 99.98865734 % 0.00000000 % 100.00000000 % 13,489,184 390,500 35,140 39,804 2,361,746 134,312 80,329 100,203 48,512 308,288 29,670 13,176,337 390,287 35,126 39,801 2,361,349 134,312 80,309 100,203 48,509 308,253 29,670 1.55884179 % 0.04617336 % 0.00415562 % 0.00470870 % 0.27936212 % 0.01588994 % 0.00950105 % 0.01185463 % 0.00573891 % 0.03646823 % 0.00351014 % 12,571.68 372.38 33.51 37.97 2,252.99 128.15 76.62 95.60 46.28 294.11 28.31 Shipper Name (a) AG PROCESSING INC A COOPERATIVE AL-CORN CLEAN FUEL ALTON MUNICIPAL UTILITIES ARCHER DANIELS MIDLAND COMPANY AUSTIN UTILITIES BADGER STATE ETHANOL LLC BLACK HILLS UTILITY HOLDINGS, INC. BP CANADA ENERGY MARKETING CORP. BUFFALO LAKE ADVANCED BIOFUELS, LLC BUSHMILLS ETHANOL, INC. CARDINAL IG CASCADE MUNICIPAL UTILITIES CEDAR FALLS UTILITIES CENTERPOINT ENERGY MINNESOTA GAS CIRCLE PINES UTILITIES CITY OF EVERLY, IOWA CITY OF FAIRBANK CITY OF FREMONT CITY OF GILMORE, IOWA CITY OF HARTLEY, IOWA CITY OF HAWARDEN, IOWA CITY OF MAPLETON CITY OF ORANGE CITY CITY OF PONCA, NEBRASKA DDVC Paid Page 1 of 6 Schedule 3 Northern Natural Gas Company Daily Delivery Variance Charge Revenue Credit Report For the period November 2014 - October 2015 Scheduled STV * Percent of Total Inverse DDVCs Tolerance Inverse Weighted Factor DDVCs paid Volume (STV) DDVCs paid (Payback Percent) 0.00 0.00 0.00 0.00 0.00 0.00 304.42 276.28 0.00 397.14 68.93 625.15 0.00 0.00 7,269.06 0.00 1.22 (c) 0.00000000 % 0.00000000 % 0.00000000 % 0.00000000 % 0.00000000 % 0.00000000 % 0.03877087 % 0.03518696 % 0.00000000 % 0.05057967 % 0.00877891 % 0.07961897 % 0.00000000 % 0.00000000 % 0.92578597 % 0.00000000 % 0.00015538 % (d) = 100% - c 100.00000000 % 100.00000000 % 100.00000000 % 100.00000000 % 100.00000000 % 100.00000000 % 99.96122913 % 99.96481304 % 100.00000000 % 99.94942033 % 99.99122109 % 99.92038103 % 100.00000000 % 100.00000000 % 99.07421403 % 100.00000000 % 99.99984462 % (e) 73,160 37,649 30,869 116,508 189,458 35,220 1,562,079 196,101 471,664 925,599 186,983 502,127 106,657 58,169 824,828 87,909 13,790 (f) = d*e 73,160 37,649 30,869 116,508 189,458 35,220 1,561,473 196,031 471,664 925,130 186,966 501,727 106,657 58,169 817,191 87,909 13,789 (g) = f / Sum(f) 0.00865528 % 0.00445411 % 0.00365199 % 0.01378361 % 0.02241405 % 0.00416674 % 0.18473187 % 0.02319167 % 0.05580076 % 0.10944857 % 0.02211923 % 0.05935739 % 0.01261818 % 0.00688175 % 0.09667873 % 0.01040018 % 0.00163132 % Penalty Credit (h) = (g) * credit amount 69.80 35.92 29.45 111.16 180.76 33.60 1,489.82 187.04 450.02 882.68 178.39 478.70 101.76 55.50 779.69 83.88 13.16 CONSTELLATION ENERGY SERVICES NATURAL 20,551.24 2.61740166 % 97.38259834 % 956,774 931,731 0.11022951 % 888.97 CONTINUUM ENERGY SERVICES, L.L.C. 1,943.83 0.00 34,386.47 1,647.34 327.11 7.58 9,273.87 10,681.06 17,950.27 0.24756579 % 99.75243421 % 0.00000000 % 100.00000000 % 4.37945368 % 95.62054632 % 0.20980488 % 99.79019512 % 0.04166066 % 99.95833934 % 0.00096539 % 99.99903461 % 1.18111816 % 98.81888184 % 1.36033758 % 98.63966242 % 2.28614266 % 97.71385734 % 198,916 55,833 365,430 370,995 401,991 224,300 3,845,988 8,643,688 442,917 198,423 55,833 349,426 370,216 401,823 224,297 3,800,562 8,526,104 432,791 0.02347466 % 0.00660539 % 0.04133925 % 0.04379883 % 0.04753813 % 0.02653572 % 0.44962988 % 1.00869060 % 0.05120184 % 189.32 53.27 333.39 353.23 383.38 214.00 3,626.16 8,134.85 412.93 Shipper Name DDVC Paid (a) (b) CITY OF REMSEN, IOWA CITY OF ROLFE, IOWA CITY OF ROUND LAKE, MN CITY OF SAC CITY, IOWA CITY OF SANBORN, IA CITY OF SCRIBNER CITY OF SIOUX CENTER CITY OF TIPTON CITY OF TWO HARBORS, MINNESOTA CITY OF VIRGINIA, MN CITY OF WAHOO CITY OF WAUKEE CITY OF WEST BEND, IOWA CITY OF WHITTEMORE CNE GAS SUPPLY, LLC COMMUNITY UTILITY COMPANY CONCORD ENERGY LLC COON RAPIDS MUNICIPAL UTILITIES CROSS TIMBERS ENERGY SERVICES, INC. DOOLEY'S NATURAL GAS II, LLC DOOLEY'S NATURAL GAS, LLC EMMETSBURG MUNICIPAL GAS WORKS ENBRIDGE MARKETING (U.S.) L.P. ENCORE ENERGY SERVICES, INC. ETC FIELD SERVICES LLC Page 2 of 6 Schedule 3 Northern Natural Gas Company Daily Delivery Variance Charge Revenue Credit Report For the period November 2014 - October 2015 Shipper Name DDVC Paid (a) (b) Scheduled STV * Percent of Total Inverse DDVCs Tolerance Inverse Weighted Factor DDVCs paid Volume (STV) DDVCs paid (Payback Percent) (c) (d) = 100% - c (e) (f) = d*e (g) = f / Sum(f) Penalty Credit (h) = (g) * credit amount GOLDEN SPREAD ELECTRIC COOPERATIVE, INC. 2,795.69 0.35605850 % 99.64394150 % 9,866,787 9,831,655 1.16314532 % 9,380.49 GRAETTINGER MUNICIPAL GAS 0.00 476.65 5,539.31 3,359.60 2,247.50 1,313.19 13.42 989.18 2,083.28 853.87 150.08 1,234.36 0.00000000 % 100.00000000 % 0.06070604 % 99.93929396 % 0.70548537 % 99.29451463 % 0.42787796 % 99.57212204 % 0.28624113 % 99.71375887 % 0.16724761 % 99.83275239 % 0.00170917 % 99.99829083 % 0.12598176 % 99.87401824 % 0.26532611 % 99.73467389 % 0.10874871 % 99.89125129 % 0.01911416 % 99.98088584 % 0.15720783 % 99.84279217 % 44,043 751,061 2,895,920 1,611,354 1,253,153 3,425,881 152,595 19,127 408,290 724,805 1,483,254 3,818,623 44,043 750,605 2,875,489 1,604,459 1,249,565 3,420,151 152,592 19,102 407,206 724,016 1,482,970 3,812,619 0.00521056 % 0.08880119 % 0.34018805 % 0.18981738 % 0.14783123 % 0.40462492 % 0.01805257 % 0.00225988 % 0.04817498 % 0.08565555 % 0.17544448 % 0.45105630 % 42.02 716.16 2,743.54 1,530.83 1,192.22 3,263.20 145.59 18.23 388.52 690.79 1,414.92 3,637.66 3,272.69 0.41680912 % 99.58319088 % 24,014,248 23,914,154 2.82919165 % 22,816.75 31,984.65 3,539.27 4.07355838 % 0.45076069 % 95.92644162 % 99.54923931 % 534,145 315,508 512,386 314,085 0.06061842 % 0.03715819 % 488.87 299.67 746.68 0.09509701 % 99.90490299 % 151,015 150,871 0.01784897 % 143.95 5.06305481 % 94.93694519 % 0.00000000 % 100.00000000 % 0.17551198 % 99.82448802 % 0.01464638 % 99.98535362 % 0.00652974 % 99.99347026 % 0.00000000 % 100.00000000 % 0.00000000 % 100.00000000 % 0.74085573 % 99.25914427 % 0.52414158 % 99.47585842 % 59,808,260 105,828 1,520,483 3,093,497 10,906,776 27,876 95,833 734,473 2,009,654 56,780,135 105,828 1,517,814 3,093,043 10,906,063 27,876 95,833 729,031 1,999,120 6.71743955 % 0.01252010 % 0.17956674 % 0.36592603 % 1.29025440 % 0.00329790 % 0.01133763 % 0.08624886 % 0.23650820 % 54,174.54 100.97 1,448.16 2,951.11 10,405.59 26.60 91.44 695.58 1,907.38 GREATER MINNESOTA GAS, INC. GREAT PLAINS NATURAL GAS CO. GREAT RIVER ENERGY GREEN PLAINS ENERGY SERVICES GUARDIAN ENERGY LLC GUTHRIE CENTER MUNICIPAL UTILITIES HALCON CORPORATION HARLAN MUNICIPAL UTILITIES HIBBING PUBLIC UTILITIES COMMISSION HIGHWATER ETHANOL, LLC HOMELAND ENERGY SOLUTIONS, LLC INTERSTATE POWER AND LIGHT COMPANY JBS USA, LLC JO-CARROLL ENERGY, INC. (NFP) KANSAS GAS SERVICE, A DIVISION OF ONE GA KOCH ENERGY SERVICES, LLC LAKE PARK MUNICIPAL UTILITIES LINCOLNWAY ENERGY, LLC LSCP, LLLP MADISON GAS & ELECTRIC COMPANY MANILLA MUNICIPAL GAS DEPT MANNING MUNICIPAL GAS DEPT MARABOU MIDSTREAM SERVICES, LP MARQUIS ENERGY-WISCONSIN, LLC 39,753.95 0.00 1,378.08 115.00 51.27 0.00 0.00 5,817.03 4,115.44 Page 3 of 6 Schedule 3 Northern Natural Gas Company Daily Delivery Variance Charge Revenue Credit Report For the period November 2014 - October 2015 Shipper Name (a) MAYO CLINIC MERRICK'S, INC. METROPOLITAN UTILITIES DISTRICT MIDAMERICAN ENERGY COMPANY MIDWEST NATURAL GAS, INC. MILLE LACS CORPORATE VENTURES MINNESOTA ENERGY RESOURCES CORPORATION MOM BRANDS COMPANY NATIONAL PUBLIC GAS AGENCY NEW ULM PUBLIC UTILITIES COMMISSION Scheduled STV * Percent of Total Inverse DDVCs Tolerance Inverse Weighted Factor DDVCs paid Volume (STV) DDVCs paid (Payback Percent) (b) 20,432.00 3.66 42,152.42 0.00 0.00 275.15 (c) (d) = 100% - c 2.60221528 % 97.39778472 % 0.00046614 % 99.99953386 % 5.36852346 % 94.63147654 % 0.00000000 % 100.00000000 % 0.00000000 % 100.00000000 % 0.03504305 % 99.96495695 % (e) 2,389,800 5,092 31,818,287 80,540,844 2,190,076 117,319 (f) = d*e 2,327,612 5,091 30,110,114 80,540,844 2,190,076 117,277 (g) = f / Sum(f) 0.27537083 % 0.00060230 % 3.56221187 % 9.52847772 % 0.25909947 % 0.01387459 % Penalty Credit (h) = (g) * credit amount 2,220.80 4.86 28,728.38 76,844.88 2,089.58 111.90 27,228.64 3.46783393 % 96.53216607 % 64,152,377 61,927,679 7.32642570 % 59,085.86 0.30204648 % 99.69795352 % 0.00000000 % 100.00000000 % 0.00000000 % 100.00000000 % 724,275 164,537 38,844 722,087 164,537 38,844 0.08542734 % 0.01946574 % 0.00459548 % 688.95 156.99 37.06 DDVC Paid 2,371.60 0.00 0.00 NORTHERN STATES POWER COMPANY, A MINNESO 30,683.12 3.90779579 % 96.09220421 % 75,847,718 72,883,744 8.62259564 % 69,539.16 NORTHERN STATES POWER COMPANY, A WISCONS 2,427.12 0.30911750 % 99.69088250 % 10,458,054 10,425,726 1.23342757 % 9,947.30 40,588.92 5.16939642 % 94.83060358 % 41,929,931 39,762,406 4.70413744 % 37,937.74 0.00 0.00 2,379.00 752.89 459.43 0.00 0.00000000 % 100.00000000 % 0.00000000 % 100.00000000 % 0.30298895 % 99.69701105 % 0.09588791 % 99.90411209 % 0.05851291 % 99.94148709 % 0.00000000 % 100.00000000 % 228,193 359,707 2,031,198 60,397 1,390,008 575 228,193 359,707 2,025,043 60,339 1,389,194 575 0.02699664 % 0.04255555 % 0.23957505 % 0.00713848 % 0.16435020 % 0.00006803 % 217.72 343.20 1,932.12 57.57 1,325.44 0.55 0.00 0.00000000 % 100.00000000 % 57,425 57,425 0.00679373 % 54.79 NORTHERN STATES POWER COMPANY (GEN) NORTHWEST NATURAL GAS LLC OSAGE MUNICIPAL UTILITIES OWATONNA PUBLIC UTILITIES PEERLESS CHAIN COMPANY PLYMOUTH ENERGY, L.L.C. PRAIRIE SUN FOODS, LLC PRESTON MUNICIPAL NATURAL GAS DEPARTMENT PURINA ANIMAL NUTRITION LLC 3,186.42 0.40582179 % 99.59417821 % 39,087 38,928 0.00460542 % 37.14 QUAD COUNTY CORN PROCESSORS COOPERATIVE 2,017.45 0.25694201 % 99.74305799 % 1,163,762 1,160,771 0.13732636 % 1,107.50 RAHR CORPORATION 2,403.06 165.68 0.30605322 % 0.02110097 % 99.69394678 % 99.97889903 % 346,949 1,372,852 345,887 1,372,562 0.04092056 % 0.16238254 % 330.01 1,309.58 REDFIELD ENERGY, LLC Page 4 of 6 Schedule 3 Northern Natural Gas Company Daily Delivery Variance Charge Revenue Credit Report For the period November 2014 - October 2015 Shipper Name (a) REG ALBERT LEA, LLC ROCK RAPIDS MUNICIPAL UTILITIES ROCK-TENN SHARED SERVICES, LLC SEQUENT ENERGY MANAGEMENT, L.P. SHEEHAN'S GAS COMPANY SIOUXLAND ENERGY & LIVESTOCK COOPERATIVE SIOUXLAND ETHANOL, LLC SOUTHWEST ENERGY, L.P. SOUTHWESTERN PUBLIC SERVICE COMPANY, A N SUPERIOR WATER, LIGHT & POWER COMPANY TENASKA MARKETING VENTURES TOWN OF BROOKLYN TOWN OF SABULA UNITED ETHANOL LLC UNITED STATES GYPSUM COMPANY U.S. ENERGY SERVICES VALENT BIOSCIENCES CORPORATION VALERO RENEWABLE FUELS COMPANY, LLC VILLAGE OF GOODHUE VIROQUA GAS COMPANY A DIVISION OF MADISO WALL LAKE MUNICIPAL GAS WESTBROOK LIGHT AND POWER WISCONSIN ELECTRIC POWER COMPANY WISCONSIN GAS LLC Scheduled STV * Percent of Total Inverse DDVCs Tolerance Inverse Weighted Factor DDVCs paid Volume (STV) DDVCs paid (Payback Percent) (e) 87,144 140,119 2,137,605 459,220 179,791 (f) = d*e 86,888 140,119 2,136,640 459,175 179,774 (g) = f / Sum(f) 0.01027939 % 0.01657694 % 0.25277767 % 0.05432323 % 0.02126837 % Penalty Credit (h) = (g) * credit amount 82.90 133.69 2,038.59 438.10 171.52 99.80150340 % 171,669 171,328 0.02026916 % 163.47 0.08883855 % 0.11660044 % 99.91116145 % 99.88339956 % 1,260,129 2,016 1,259,009 2,013 0.14894852 % 0.00023815 % 1,201.23 1.92 47,706.41 6.07587847 % 93.92412153 % 32,188,379 30,232,652 3.57670887 % 28,845.30 2,345.35 0.29870329 % 99.70129671 % 1,666,913 1,661,933 0.19661691 % 1,585.67 25,084.76 0.00 0.00 2,134.63 5,770.84 3,146.71 271.93 3.19478982 % 96.80521018 % 0.00000000 % 100.00000000 % 0.00000000 % 100.00000000 % 0.27186603 % 99.72813397 % 0.73497298 % 99.26502702 % 0.40076433 % 99.59923567 % 0.03463295 % 99.96536705 % 23,527,090 81,175 24,997 1,548,005 198,052 440,652 184,498 22,775,448 81,175 24,997 1,543,796 196,596 438,886 184,434 2.69447572 % 0.00960350 % 0.00295730 % 0.18264057 % 0.02325852 % 0.05192292 % 0.02181968 % 21,730.30 77.45 23.85 1,472.95 187.57 418.75 175.97 63,800.50 8.12561843 % 91.87438157 % 6,837,306 6,281,732 0.74316757 % 5,993.47 45.26 0.00576430 % 99.99423570 % 69,521 69,516 0.00822417 % 66.33 358.18 0.04561773 % 99.95438227 % 348,928 348,768 0.04126140 % 332.76 0.01899062 % 99.98100938 % 0.00000000 % 100.00000000 % 0.00000000 % 100.00000000 % 0.40603193 % 99.59396807 % 32,597 35,783 10,275,166 22,519,252 32,590 35,783 10,275,166 22,427,816 0.00385560 % 0.00423335 % 1.21561540 % 2.65334872 % 31.09 34.14 9,803.65 21,398.62 DDVC Paid (b) 2,301.06 0.00 354.41 76.79 71.98 (c) (d) = 100% - c 0.29306252 % 99.70693748 % 0.00000000 % 100.00000000 % 0.04513758 % 99.95486242 % 0.00977996 % 99.99022004 % 0.00916736 % 99.99083264 % 1,558.55 0.19849660 % 697.54 915.52 149.11 0.00 0.00 3,188.07 Page 5 of 6 Schedule 3 Northern Natural Gas Company Daily Delivery Variance Charge Revenue Credit Report For the period November 2014 - October 2015 Shipper Name DDVC Paid (a) WISCONSIN POWER AND LIGHT COMPANY WOODBINE MUNICIPAL NATURAL GAS SYSTEMS WORLD FUEL SERVICES, INC. WTG GAS MARKETING, INC. Total: (b) 525.15 Scheduled STV * Percent of Total Inverse DDVCs Tolerance Inverse Weighted Factor DDVCs paid Volume (STV) DDVCs paid (Payback Percent) (c) 0.06688299 % Penalty Credit (h) = (g) * (g) = f / Sum(f) credit amount 1.63109065 % 13,154.35 (d) = 100% - c 99.93311701 % (e) 13,796,259 (f) = d*e 13,787,031 0.00 0.00000000 % 100.00000000 % 54,858 54,858 0.00649004 % 52.34 1,865.81 0.00 $785,177.16 0.23762917 % 99.76237083 % 0.00000000 % 100.00000000 % 100.0000000 % 87,963 97,314 874,297,484 87,753 97,314 845,264,547 0.01038172 % 0.01151285 % 100.0000000 % 83.73 92.85 $806,475.97 Page 6 of 6