Basis Price Contract 2010-11 September 03, 2010 03:00 September 03, 2010 09:00 January 31, 2011 December-10 Minn CWRS -3.8100000 -1.4500000 -0.1000000 -0.0400000 Minn CWHWS -3.8100000 -1.4500000 -0.1000000 -0.0400000 Minn CWES -3.8100000 -1.4500000 -0.1000000 -0.0400000 Kansas CPSR -3.5100000 -1.2600000 -0.1000000 -0.0400000 Kansas CPSW -3.5100000 -1.2600000 -0.1000000 -0.0400000 Kansas CWRW -3.5100000 -1.2600000 -0.1000000 -0.0400000 Chicago CWSWS -3.3300000 -1.2000000 -0.0900000 -0.0300000 March-11 Minn CWRS -3.8100000 -1.4500000 -0.1000000 -0.0400000 Minn CWHWS -3.8100000 -1.4500000 -0.1000000 -0.0400000 Minn CWES -3.8100000 -1.4500000 -0.1000000 -0.0400000 Kansas CPSR -3.5100000 -1.2600000 -0.1000000 -0.0400000 Kansas CPSW -3.5100000 -1.2600000 -0.1000000 -0.0400000 Kansas CWRW -3.5100000 -1.2600000 -0.1000000 -0.0400000 Chicago CWSWS -3.3300000 -1.2000000 -0.0900000 -0.0300000 May-11 Minn CWRS -3.8100000 -1.4500000 -0.1000000 -0.0400000 Minn CWHWS -3.8100000 -1.4500000 -0.1000000 -0.0400000 Minn CWES -3.8100000 -1.4500000 -0.1000000 -0.0400000 Kansas CPSR -3.5100000 -1.2600000 -0.1000000 -0.0400000 Kansas CPSW -3.5100000 -1.2600000 -0.1000000 -0.0400000 Kansas CWRW -3.5100000 -1.2600000 -0.1000000 -0.0400000 Chicago CWSWS -3.3300000 -1.2000000 -0.0900000 -0.0300000 July-11 Minn CWRS -3.8100000 -1.4500000 -0.1000000 -0.0400000 Minn CWHWS -3.8100000 -1.4500000 -0.1000000 -0.0400000 Minn CWES -3.8100000 -1.4500000 -0.1000000 -0.0400000 Kansas CPSR -3.5100000 -1.2600000 -0.1000000 -0.0400000 Kansas CPSW -3.5100000 -1.2600000 -0.1000000 -0.0400000 Kansas CWRW -3.5100000 -1.2600000 -0.1000000 -0.0400000 Chicago CWSWS -3.3300000 -1.2000000 -0.0900000 -0.0300000 December-10 Minn CWRS 290.810000 6.00000000 7.91000000 0.16000000 Minn CWHWS 290.810000 6.00000000 7.91000000 0.16000000 Minn CWES 290.810000 6.00000000 7.91000000 0.16000000 Kansas CPSR 290.620000 6.87000000 7.91000000 0.19000000 Kansas CPSW 290.620000 6.87000000 7.91000000 0.19000000 Kansas CWRW 290.620000 6.87000000 7.91000000 0.19000000 Chicago CWSWS 284.290000 7.71000000 7.74000000 0.21000000 March-11 Minn CWRS 293.399999 5.78000000 7.99000000 0.16000000 Minn CWHWS 293.399999 5.78000000 7.99000000 0.16000000 Minn CWES 293.399999 5.78000000 7.99000000 0.16000000 Kansas CPSR 294.740000 6.63000000 8.02000000 0.18000000 Kansas CPSW 294.740000 6.63000000 8.02000000 0.18000000 Kansas CWRW 294.740000 6.63000000 8.02000000 0.18000000 Chicago CWSWS 293.019999 7.14000000 7.97000000 0.19000000 May-11 Minn CWRS 290.810000 5.22000000 7.91000000 0.14000000 Minn CWHWS 290.810000 5.22000000 7.91000000 0.14000000 Minn CWES 290.810000 5.22000000 7.91000000 0.14000000 Kansas CPSR 291.199999 5.90000000 7.93000000 0.17000000 Kansas CPSW 291.199999 5.90000000 7.93000000 0.17000000 Kansas CWRW 291.199999 5.90000000 7.93000000 0.17000000 Chicago CWSWS 290.050000 5.34000000 7.89000000 0.14000000 July-11 Minn CWRS 286.790000 2.37000000 7.81000000 0.07000000 Minn CWHWS 286.790000 2.37000000 7.81000000 0.07000000 Minn CWES 286.790000 2.37000000 7.81000000 0.07000000 Kansas CPSR 281.220000 2.90000000 7.65000000 0.08000000 Kansas CPSW 281.220000 2.90000000 7.65000000 0.08000000 Kansas CWRW 281.220000 2.90000000 7.65000000 0.08000000 Chicago CWSWS 279.790000 2.73000000 7.61000000 0.07000000 December-10 CWRS 3.94000000 -0.1600000 0.11000000 0.00000000 CWHWS 3.94000000 -0.1600000 0.11000000 0.00000000 CWES -26.030000 -0.1600000 -0.7100000 -0.0100000 CPSR -31.570000 -0.9400000 -0.8600000 -0.0300000 CPSW -33.680000 -0.9400000 -0.9200000 -0.0300000 CWRW -35.570000 -0.9400000 -0.9700000 -0.0300000 CWSWS -39.420000 -1.8100000 -1.0700000 -0.0500000 March-11 CWRS 1.35000000 0.06000000 0.04000000 0.00000000 CWHWS 1.35000000 0.06000000 0.04000000 0.00000000 CWES -28.620000 0.06000000 -0.7800000 0.00000000 CPSR -35.689999 -0.7000000 -0.9700000 -0.0200000 CPSW -37.799999 -0.7000000 -1.0300000 -0.0200000 CWRW -39.689999 -0.7000000 -1.0800000 -0.0200000 CWSWS -48.149999 -1.2400000 -1.3100000 -0.0300000 May-11 CWRS 3.94000000 0.62000000 0.11000000 0.02000000 CWHWS 3.94000000 0.62000000 0.11000000 0.02000000 CWES -26.030000 0.62000000 -0.7100000 0.02000000 CPSR -32.149999 0.03000000 -0.8700000 0.01000000 CPSW -34.259999 0.03000000 -0.9300000 0.00000000 CWRW -36.149999 0.03000000 -0.9800000 0.00000000 CWSWS -45.180000 0.56000000 -1.2300000 0.01000000 July-11 CWRS 7.96000000 3.47000000 0.22000000 0.10000000 CWHWS 7.96000000 3.47000000 0.22000000 0.10000000 CWES -22.010000 3.47000000 -0.6000000 0.09000000 CPSR -22.170000 3.03000000 -0.6000000 0.09000000 CPSW -24.280000 3.03000000 -0.6600000 0.08000000 CWRW -26.170000 3.03000000 -0.7100000 0.08000000 CWSWS -34.920000 3.17000000 -0.9500000 0.09000000