SPP OPEN ACCESS TARIFF
CUSTOMER TARIFF PURCHASES
2006
CUSTOMER	JANUARY	FEBRUARY	MARCH	APRIL	MAY	JUNE	JULY	AUGUST	SEPTEMBER	OCTOBER	NOVEMBER	DECEMBER	TOTAL
American Electric Power	887,297.12	974,987.84	1,005,519.25	(293,959.80)	923,004.53	770,307.56	1,144,202.86	997,480.75	787,481.03	1,189,545.01	974,448.71	954,266.81	10,314,581.67
Arkansas Electric Cooperative Corp	28,224.97	13,066.07	13,131.79	13,131.79	10,187.80	0.00	27,632.77	19,207.34	182.58	31,292.63	12,886.25	12,054.73	180,998.72
Associated Electric Cooperative	59,914.66	30,949.37	129,382.50	130,982.20	48,545.82	27,774.73	21,538.18	15,683.56	78,156.38	401,324.99	(51,114.55)	24,296.34	917,434.18
British Columbia Power Exchange	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	505.03	1,088.20	1,593.23
British Petroleum	38,869.23	51,211.97	(30,045.69)	637.06	8,711.38	1.74	0.00	0.00	731.29	394.78	0.00	(135.07)	70,376.69
Calpine Energy Services	794,580.26	774,573.22	723,465.82	756,629.08	792,142.74	861,205.81	799,529.34	822,746.94	704,124.33	581,579.85	644,142.07	640,398.62	8,895,118.08
Cargill Power Markets	732,615.03	607,155.91	501,196.30	543,650.02	411,335.05	583,781.74	454,759.53	478,510.72	515,867.47	353,050.37	449,473.98	672,046.72	6,303,442.84
Carthage Water & Electric Plant	6,450.24	7,366.25	51,640.51	0.00	306.14	(5,827.34)	0.00	0.00	39,153.66	4,677.02	0.00	0.00	103,766.48
Central & Southwest Services	331.36	(2,108.60)	0.00	0.00	0.00	371.67	(371.67)	0.00	0.00	0.00	0.00	0.66	(1,776.58)
Cinergy Services	46,776.61	14,946.41	51,421.38	25,514.66	38,430.57	61,314.51	91,195.37	82,542.79	86,239.37	0.00	0.00	(312.73)	498,068.94
City of Independence	101,693.71	99,331.26	101,826.75	99,938.99	101,614.07	100,753.58	102,084.42	101,579.60	100,751.87	101,668.31	100,936.16	101,285.05	1,213,463.77
City of Sikeston	232.47	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	232.47
City Utilities of Springfield	642,806.04	644,700.72	640,495.12	633,679.13	633,655.25	796,174.68	704,779.34	654,063.83	635,296.94	636,644.43	639,483.70	752,180.46	8,013,959.64
Cleco Power	111.17	1,220.60	813.53	0.00	0.00	0.00	0.00	111.56	131.06	0.00	1,540.38	(8.57)	3,919.73
Conoco	64,627.15	84,922.96	9,665.05	17,968.47	10,915.79	7,785.57	7,785.68	23,967.29	9,414.15	2,108.84	2,281.19	1,434.43	242,876.57
Constellation Energy Commodities Group	4,473.07	52.39	2,599.33	6,633.22	245.78	450.51	1,884.97	13,119.71	1,181.28	3,481.21	1,877.68	141.88	36,141.03
Coral Power	0.00	0.00	0.00	7,872.69	1,298.03	3,448.38	8,701.84	5,720.38	3,114.08	3,242.82	7,151.29	1,286.03	41,835.54
Duke Energy North America	(0.00)	0.00	191.37	(191.37)	0.00	0.00	0.00	0.00	0.00	0.00	0.00	(1.68)	(1.68)
Eagle Energy Partners I, L.P.	2,434.26	0.00	0.00	0.00	0.00	173.20	0.00	0.00	0.00	0.00	0.00	(9.12)	2,598.34
East Texas Electric Cooperative	149,544.64	91,978.49	201,358.02	116,125.72	155,065.68	149,369.27	162,097.50	172,791.07	158,400.51	250,049.65	179,262.68	357,994.57	2,144,037.80
Empire District Electric Co	1,296,946.89	1,295,220.52	1,296,771.85	1,295,996.43	1,293,734.00	1,299,066.63	1,306,601.46	1,321,461.97	1,296,400.04	1,299,607.09	1,298,324.15	1,297,836.65	15,597,967.68
Entergy Services	0.00	0.00	0.00	789.10	0.00	0.00	0.00	0.00	0.00	753.16	0.00	(1.71)	1,540.55
Exelon Generation Co	722,070.89	744,775.87	761,080.70	755,325.38	749,685.84	755,150.19	766,809.95	762,243.20	762,120.10	771,382.63	757,781.29	768,149.96	9,076,576.00
Florida Power & Light	405,802.84	317,836.28	132,373.60	0.00	25,164.91	6,928.19	0.00	1,084.22	191,815.53	52,642.84	41,926.43	26,281.29	1,201,856.13
Golden Spread	9,744.64	8,863.70	9,277.97	481,874.69	20,985.86	140,246.93	142,587.23	143,104.41	136,261.63	206,056.40	129,010.11	128,384.61	1,556,398.18
Grand River Dam Authority	1,366,910.90	1,363,797.21	1,320,954.22	1,348,607.07	1,332,545.52	1,370,022.69	1,362,337.86	1,370,519.31	1,352,868.86	1,344,227.59	1,338,141.61	1,342,859.12	16,213,791.96
Higginsville	3,764.90	3,347.12	3,350.21	3,347.22	4,037.03	3,292.52	3,710.26	4,016.77	3,355.95	3,360.97	3,358.80	2,996.77	41,938.52
Kansas City Board of Public Utilities	0.00	4,842.48	0.00	487.27	430.86	0.00	1,866.40	574.85	0.00	1,190.86	8,468.68	8,125.82	25,987.22
Kansas City Power & Light Co	456,589.94	281,624.02	286,415.88	492,140.58	556,540.58	598,918.57	685,186.10	722,344.19	1,547,735.82	1,110,231.99	1,251,951.75	1,232,033.59	9,221,713.01
Kansas Electric Power Cooperative	551,445.64	562,835.57	563,629.30	562,313.37	564,088.03	564,294.17	569,986.86	537,878.35	644,639.65	563,011.92	543,292.99	541,117.67	6,768,533.52
Kansas Municipal Energy Agency	193,903.70	170,242.33	150,852.82	136,232.87	210,930.14	141,983.79	292,082.86	234,259.11	182,746.52	196,002.51	121,757.99	170,800.42	2,201,795.06
Kansas Power Pool	1,904.38	1,785.30	1,677.39	205,755.18	167,474.65	(140,774.14)	121,782.05	178,150.16	18,565.04	16,541.70	74,829.49	456,986.29	1,104,677.49
Lafayette Utilities System	456.45	928.17	0.00	71.96	85.22	0.00	2,346.04	0.00	0.00	0.00	0.00	(3.00)	3,884.84
Louisiana Energy & Power Authority	177.47	607.12	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	(1.05)	783.54
Merrill Lynch Commodities	17,943.53	3,381.91	3,367.15	24,045.20	5,640.88	27,380.48	10,825.23	6,164.96	7,405.96	2,941.77	17,330.44	28,746.20	155,173.71
Midwest Energy	383,569.51	383,987.88	384,815.11	383,370.65	383,503.78	401,168.43	403,802.19	407,775.28	408,326.11	402,980.62	406,682.89	399,478.14	4,749,460.59
Missouri Public Service	23,457.30	24,371.35	23,054.64	22,416.40	26,377.28	20,909.76	29,286.28	31,455.64	36,544.53	30,000.49	21,313.53	20,568.36	309,755.56
Morgan Stanley Capital Group	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	(853.96)	(853.96)
North Texa Electric Cooperative	657,547.89	260,052.01	864,916.42	555,001.57	673,337.46	552,228.57	820,990.58	803,351.75	642,259.54	911,739.77	755,023.12	967,967.37	8,464,416.05
NRG Power Marketing	0.00	1,911.04	0.00	1,459.30	0.00	563.08	0.00	2,532.02	943.16	0.00	0.00	(6.76)	7,401.84
Oklahoma Energy Resources	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
Oklahoma Gas & Electric Co	144,857.74	125,393.95	123,570.35	126,852.17	123,687.01	139,709.57	152,429.55	172,972.12	180,200.99	127,844.74	123,955.56	5,639,851.77	7,181,325.52
Oklahoma Municipal Power Authority	512,664.48	507,371.15	569,691.39	636,444.07	706,802.37	689,551.88	746,665.33	721,665.00	690,916.30	539,799.98	659,760.90	605,558.38	7,586,891.23
Omaha Public Power District	382.81	2,834.50	0.00	0.00	1,486.87	2,833.47	967.27	5,024.56	3,432.77	0.00	1,449.10	1,610.30	20,021.65
ONEOK Power Marketing	217,652.24	235,545.87	315,973.13	358,830.84	342,965.11	0.00	0.00	0.00	0.00	0.00	0.00	(3,221.16)	1,467,746.03
Paragould Light, Water, and Cable	123,790.08	170,879.04	140,621.76	112,765.41	126,383.04	124,603.20	127,098.68	112,130.72	124,603.20	0.00	0.00	0.00	1,162,875.13
Poplar Bluff Municipal Utilities	(0.00)	119,791.56	99,607.68	81,253.08	90,189.36	89,002.80	91,065.68	89,531.81	89,002.80	0.00	0.00	0.00	749,444.77
Public Service Company of Colorado	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	(532.13)	(532.13)
Public Service Company of New Mexico	0.00	0.00	0.00	0.00	0.00	0.00	372,218.47	384,608.92	344,663.64	341,587.50	399,632.61	385,639.22	2,228,350.36
Rainbow Electric	64,709.70	43,719.88	20,214.65	21,974.75	74,417.47	38,167.91	37,151.90	151,643.35	108,228.45	57,166.41	61,156.84	113,433.93	791,985.24
Redbud	0.00	0.00	0.00	0.00	0.00	0.00	(42,718.12)	(37,953.96)	(30,691.66)	(27,954.17)	(96,538.71)	(84,190.28)	(320,046.90)
Reliant Energy Services	64,675.92	63,498.12	64,675.92	64,237.63	64,645.85	0.00	0.00	0.00	0.00	0.00	0.00	(4,019.77)	317,713.67
Sempra Energy Trading Corp	55,118.52	33,755.49	62,913.02	17,873.71	19,758.43	18,167.24	6,771.45	0.00	9,060.98	15,878.80	14,204.98	22,678.23	276,180.85
Southern Mississippi Electric Power	0.00	0.00	0.00	0.00	291.21	65.24	0.00	0.00	0.00	0.00	0.00	523.40	879.85
Southwestern Power Administration	13.23	0.00	0.00	0.00	1,521.46	0.00	0.00	0.00	0.00	6,413.46	3,570.81	26,629.61	38,148.57
Southwestern Public Service Co	3,173,329.15	1,882,085.66	2,930,619.03	3,786,664.15	1,678,818.83	2,933,401.58	2,959,873.20	3,055,279.16	3,098,117.46	2,739,320.07	2,573,575.42	1,686,269.96	32,497,353.67
Split Rock Energy	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	3,272.94	0.00	3,272.94
St Joseph Light & Power	8,503.58	9,240.56	8,285.73	8,085.00	7,905.59	6,885.34	8,356.29	9,603.88	10,134.57	9,361.24	7,300.91	7,956.52	101,619.21
Sunflower Electric Power Corp	5,382.33	11,820.79	707,674.10	1,121,262.34	492,635.12	56,534.15	35,199.56	37,805.90	3,716.61	73,073.47	1,971.80	12,139.12	2,559,215.29
Tenaska Power Services	64,552.44	50,654.68	71,396.10	80,390.16	208,062.42	177,749.04	178,125.09	203,624.24	205,164.51	105,416.71	216,475.04	323,238.44	1,884,848.87
Texas Electric Cooperative	162,512.61	155,320.82	141,247.57	153,199.99	165,030.40	165,563.65	179,604.86	159,940.88	189,171.37	183,016.00	160,925.80	571,078.72	2,386,612.67
The Energy Authority	38,715.63	78,358.78	30,140.57	27,715.55	30,371.51	11,235.15	19,004.85	21,815.31	10,450.28	10,546.32	2,105.40	1,537.12	281,996.47
TransAlta	0.00	0.00	0.00	0.00	0.00	66.54	0.00	0.00	0.00	0.00	0.00	0.00	66.54
UtiliCorp	114,797.05	82,065.65	111,422.62	85,489.67	159,431.36	281,846.88	275,351.66	182,227.19	213,963.40	309,113.78	228,033.23	233,593.27	2,277,335.76
West Plains	8,953.82	9,011.18	8,805.07	8,637.72	8,579.04	7,041.91	10,495.54	11,798.55	11,963.53	10,872.93	7,696.35	7,362.40	111,218.04
Westar Energy	6,653,624.49	7,014,441.53	7,049,353.27	6,838,123.16	7,044,542.05	7,116,049.05	7,297,325.76	7,200,976.68	8,727,629.73	7,211,326.00	7,617,331.63	7,407,579.25	87,178,302.60
Western Farmers Electric Cooperative	1,047,344.16	1,048,820.46	1,039,714.74	1,040,685.48	1,052,140.18	1,348,066.16	1,087,622.57	1,157,646.25	1,050,070.90	1,211,707.41	1,073,652.42	1,061,436.70	13,218,907.43
Williams Power Co	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	548.25	548.25
TOTAL 2006	22,114,798.84	20,469,374.41	22,701,124.99	22,898,330.98	21,549,685.35	22,305,006.23	23,588,631.07	23,554,782.29	25,392,014.27	23,396,222.87	22,791,600.87	28,926,174.36	279,687,746.53