SPP OPEN ACCESS TARIFF
CUSTOMER TARIFF PURCHASES
2010
CUSTOMER	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE	JULY	AUGUST	SEPTEMBER	OCTOBER	NOVEMBER	DECEMBER	TOTAL
AMERICAN ELECTRIC POWER - SLEEPING BEAR	17,498.66	17,498.66	0.00	0.00	0.00								34,997.32
AMERICAN ELECTRIC POWER SERVICE CORP	1,372,983.62	2,137,844.92	2,276,290.70	2,500,063.21	2,321,924.32								10,609,106.77
ARKANSAS ELECTRIC COOPERATIVE CORPORATION	1,796,118.93	1,481,508.74	1,404,930.56	1,035,710.03	1,387,141.57								7,105,409.83
ASSOCIATED ELECTRIC COOPERATIVE, INC.	0.00	0.00	53.80	0.00	0.00
ASSOCIATED ELECTRIC COOPERATIVE, INC. - POWER MARKET	9,983.61	41,650.71	92,106.23	64,730.13	62,991.04								271,461.72
BLACK HILL POWER, INC.	111.12	0.56	0.15	0.00	0.00								111.83
CALPINE ENERGY SERVICES	-166,638.67	-46,334.25	-9,132.03	24,036.69	755,459.67								557,391.41
CARGILL-ALLIANT, LLC	909,377.45	609,722.05	561,882.76	557,773.41	554,875.50								3,193,631.17
CARTHAGE WATER AND ELECTRIC PLANT	6,072.47	8,221.49	5,939.56	6,003.30	7,223.21								33,460.03
CITIGROUP ENERGY INC.	-16.67	0.00	0.00	0.00	0.00								-16.67
CITY OF BENTONVILLE	215,464.87	211,780.22	189,624.01	206,226.88	251,187.08								1,074,283.06
CITY OF COFFEYVILLE	190,201.95	189,850.24	188,141.70	193,273.19	199,675.60								961,142.68
CITY OF INDEPENDENCE - POWER & LIGHT	248,780.98	220,392.27	225,491.06	288,556.71	291,071.16								1,274,292.18
CITY OF LAFAYETTE	0.19	0.00	0.00	0.00	36.72								36.91
CITY OF MINDEN	55,996.77	54,823.23	48,894.61	56,920.84	72,320.02								288,955.47
CITY OF OSAGE	16,687.34	19,574.84	19,484.39	19,946.69	19,780.47								95,473.73
CITY OF PRESCOTT	26,336.34	29,497.01	17,147.45	27,239.20	22,907.18								123,127.18
CITY UTILITIES OF SPRINGFIELD	827,274.28	825,564.84	828,568.72	835,031.76	841,964.09								4,158,403.69
CLECO POWER GROUP, LLC	2,459.73	3,871.72	2,300.81	390.11	651.01								9,673.38
CONOCO PHILLIPS	-0.01	0.00	0.00	0.00	64.05								64.04
CONSTELLATION ENERGY COMMODITIES GROUP, INC	1,894.53	5,040.32	1,735.03	2,773.14	1,297.31								12,740.33
EAGLE ENERGY PARTNERS, LP	1,022.94	-178.01	0.00	0.00	288.49								1,133.42
EAST TEXAS ELECTRIC COOPERATIVE, INC.	287,840.18	265,764.33	206,517.69	257,833.60	199,794.70								1,217,750.50
EMPIRE DISTRICT ELECTRIC CO.	1,331,351.82	1,355,138.63	1,363,448.28	1,402,546.22	1,381,040.46								6,833,525.41
ENDURE ENERGY	147,798.86	193,620.27	118,808.66	133,498.44	239,692.96								833,419.19
ENTERGY POWER VENTURES	0.00	7,119.09	0.00	0.00	0.00								7,119.09
ENTERGY SERVICES, INC.	748.23	6.43	2,588.96	0.00	3.23								3,346.85
EXELON GENERATION COMPANY, LLC	813,816.53	795,584.86	792,179.31	808,382.54	913,745.87								4,123,709.11
FORTIS ENERGY MARKETING & TRADING GP	-3.68	1.18	0.00	0.00	0.00								-2.50
GDF SUEZ ENERGY MARKETING NA, INC.	31,414.16	20,463.32	6,223.64	23.45	5.94								58,130.51
GOLDEN SPREAD ELECTRIC COOPERATIVE, INC.	265,310.55	250,985.13	556,501.34	537,651.99	375,576.67								1,986,025.68
GRAND RIVER DAM AUTHORITY	1,873,880.90	1,878,006.30	1,877,131.66	1,899,191.30	1,901,457.33								9,429,667.49
HASTINGS UTILITIES	0.00	0.00	691.79	0.00	12,655.37								13,347.16
HIGGINSVILLE MUNICIPAL UTILITIES	3,703.02	3,582.76	3,617.12	3,660.60	3,813.75								18,377.25
HOPE WATER AND LIGHT COMMISSION	92,246.09	96,634.02	94,177.55	92,163.28	111,795.97								487,016.91
INTEGRYS ENERGY SERVICES, INC	31,497.19	-4,550.80	22.60	0.00	0.00								26,968.99
J.P. MORGAN VENTURES ENERGY CORPORATION	747,434.26	530,236.47	503,863.23	514,862.53	524,608.03								2,821,004.52
KANSAS CITY BOARD OF PUBLIC UTILITIES	138,017.53	86,073.76	98,102.13	94,065.45	105,654.30								521,913.17
KANSAS CITY POWER & LIGHT, CO.	1,398,085.25	1,416,716.26	1,438,399.04	1,617,540.14	2,266,987.24								8,137,727.93
KANSAS ELECTRIC POWER COOPERATIVE	983,855.83	745,330.67	907,747.59	912,804.72	1,582,539.57								5,132,278.38
KANSAS ENERGY LLC	0.00	0.00	0.00	0.00	1,667.83								1,667.83
KANSAS MUNICIPAL ENERGY AGENCY	240,020.49	202,276.65	233,476.34	233,323.27	554,791.11								1,463,887.86
KANSAS POWER POOL	535,486.69	695,254.60	686,979.21	710,907.31	775,575.59								3,404,203.40
KAW VALLEY ELECTRIC COOPERATIVE	0.00	0.00	86,896.69	88,290.39	87,735.94								262,923.02
LINCOLN ELECTRIC SYSTEM MARKETING	1,289,010.96	1,294,902.65	1,308,519.68	1,349,904.99	1,326,285.43								6,568,623.71
LOUISIANA ENERGY AND POWER AUTHORITY	103.60	42.99	74.66	0.07	149.69								371.01
LOUISIANA GENERATING LLC	305.24	1,003.50	0.26	1.42	110.33								1,420.75
MAG EERGY SOLUTIONS, INC.	577.95	2.49	0.93	0.00	0.00								581.37
MERRILL LYNCH COMMODITIES, INC.	8,789.22	21,917.10	4,117.47	5,224.95	65,311.80								105,360.54
MID-KANSAS ELECTRIC COMPANY	554,886.51	510,212.25	547,636.50	529,379.86	2,391,039.56								4,533,154.68
MIDWEST ENERGY	468,233.08	404,055.22	448,158.40	465,902.28	459,369.49								2,245,718.47
MISSOURI JOINT MUNICIPAL EUC	199,505.10	197,568.87	203,679.02	245,483.38	254,616.65								1,100,853.02
MORGAN STANLEY CAPITAL GROUP INC.	1,788.34	0.28	1.55	5.59	888.28								2,684.04
MUNICIPAL ENERGY AGENCY OF NEBRASKA	30,288.66	269,776.20	185,486.21	316,998.39	232,746.80								1,035,296.26
NEBRASKA PUBLIC POWER DISTRICT	4,026,235.52	3,923,972.55	3,791,649.04	6,521,033.49	4,254,461.92								22,517,352.52
NEMAHA-MARSHALL ELECTRIC COOPERATIVE	0.00	0.00	34,449.67	34,909.21	34,735.75								104,094.63
NORTHEAST TEXAS ELECTRIC COOPERATIVE, INC.	1,424,131.23	597,786.71	1,505,020.45	1,238,963.12	540,099.20								5,306,000.71
NRG POWER MARKETING, INC.	-2.06	0.00	0.00	0.00	0.00								-2.06
OGE POWER SUPPLY	10,057.31	-9,607.50	0.00	0.00	0.00								449.81
OKLAHOMA GAS & ELECTRIC	7,305,430.36	7,531,317.46	7,611,412.39	7,804,601.11	7,686,034.33								37,938,795.65
OKLAHOMA MUNICIPAL POWER AUTHORITY	781,774.85	769,085.69	731,360.26	760,616.48	862,710.44								3,905,547.72
OMAHA PUBLIC POWER DISTRICT	3,532,532.89	3,554,001.00	3,622,801.71	3,831,816.44	3,592,410.97								18,133,563.01
POWEREX CORP.	4,749.09	64.45	5,984.82	7,976.64	2,929.74								21,704.74
PUBLIC SERVICE COMPANY OF COLORADO	-1,490.79	0.00	6.10	0.00	0.00								-1,484.69
PUBLIC SERVICE COMPANY OF NEW MEXICO	336,938.70	293,977.80	288,359.42	285,070.78	270,301.04								1,474,647.74
RAINBOW ENERGY MARKETING CORPORATION	195,149.76	116,114.51	79,120.67	118,430.26	80,605.57								589,420.77
SEMPRA ENERGY TRADING CORP.	78,288.70	109,302.34	70,037.29	14,932.38	42,586.26								315,146.97
SHDY	-689.00	0.00	0.00	0.00	0.00								-689.00
SIKESTON BOARD OF MUNICIPAL UTILITIES	9,433.74	1,395.30	0.00	0.00	0.00								10,829.04
SOUTH MISS. ELECTRIC POWER ASSOC.	0.87	0.12	495.44	703.65	1,148.26								2,348.34
SOUTHWEST PUBLIC SERVICE COMPANY	2,619,501.76	2,689,570.42	3,064,047.21	3,072,691.31	2,584,867.79								14,030,678.49
SOUTHWESTERN POWER ADMINISTRATION	38,786.32	38,786.71	38,786.50	38,786.50	38,931.30								194,077.33
SUNFLOWER ELECTRIC POWER CORPORATION	593.45	12,892.85	10,821.99	0.00	0.00								24,308.29
SUNFLOWER ELECTRIC POWER CORPORATION-PM	1,466,281.41	-131,864.88	1,265,321.65	1,323,621.47	1,296,901.15								5,220,260.80
TENASKA POWER SERVICE CO.	313,346.00	243,982.59	221,269.48	207,324.48	296,579.22								1,282,501.77
TEX-LA ELECTRIC COOPERATIVE OF TEXAS, INC.	370,375.45	321,943.24	235,658.54	323,839.58	262,573.56								1,514,390.37
THE ENERGY AUTHORITY	19,282.71	159,609.15	283,762.81	212,879.43	121,037.41								796,571.51
UNION ELECTRIC COMPANY DBA AMERENUE	0.01	792.50	646.08	1.01	0.57								1,440.17
UNION POWER PARTNERS	289.53	0.04	0.46	0.00	0.00								290.03
UTILICORP UNITED INC.	260,285.28	305,719.90	328,257.99	395,861.02	443,236.84								1,733,361.03
WESTAR ENERGY-GENERATION SERVICES	9,305,143.36	10,345,197.60	10,487,899.64	10,661,275.59	10,595,590.38								51,395,106.57
WESTERN AREA POWER ADMINISTRATION - UGP MARKETING	0.00	0.00	0.00	0.00	8.46
WESTERN FARMERS ENERGY SERVICES	1,325,204.29	1,343,395.71	1,639,295.90	5,305,056.94	2,442,486.91								12,055,439.75
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TOTAL 2010	50,429,233.73	49,265,491.30	52,844,972.53	60,198,712.34	58,010,755.45	0.00	0.00	0.00	0.00	0.00	0.00	0.00	270,749,103.09