2009-01-01,5.66,$US/mmbtu
2009-01-02,5.99,$US/mmbtu
2009-01-03,5.99,$US/mmbtu
2009-01-04,5.99,$US/mmbtu
2009-01-05,6.09,$US/mmbtu
2009-01-06,6.00,$US/mmbtu
2009-01-07,6.00,$US/mmbtu
2009-01-08,5.56,$US/mmbtu
2009-01-09,5.51,$US/mmbtu
2009-01-10,6.03,$US/mmbtu
2009-01-11,5.49,$US/mmbtu
2009-01-12,5.52,$US/mmbtu
2009-01-13,5.17,$US/mmbtu
2009-01-14,4.98,$US/mmbtu
2009-01-15,4.90,$US/mmbtu
2009-01-16,4.78,$US/mmbtu
2009-01-17,4.81,$US/mmbtu
2009-01-18,4.81,$US/mmbtu
2009-01-19,4.71,$US/mmbtu
2009-01-20,4.70,$US/mmbtu
2009-01-21,4.79,$US/mmbtu
2009-01-22,4.64,$US/mmbtu
2009-01-23,4.49,$US/mmbtu
2009-01-24,4.49,$US/mmbtu
2009-01-25,4.49,$US/mmbtu
2009-01-26,4.46,$US/mmbtu
2009-01-27,4.45,$US/mmbtu
2009-01-28,4.43,$US/mmbtu
2009-01-29,4.61,$US/mmbtu
2009-01-30,4.39,$US/mmbtu
2009-01-31,4.42,$US/mmbtu
2009-02-01,4.42,$US/mmbtu
2009-02-02,4.57,$US/mmbtu
2009-02-03,4.53,$US/mmbtu
2009-02-04,4.63,$US/mmbtu
2009-02-05,4.65,$US/mmbtu
2009-02-06,4.77,$US/mmbtu
2009-02-07,4.77,$US/mmbtu
2009-02-08,4.77,$US/mmbtu
2009-02-09,4.81,$US/mmbtu
2009-02-10,4.54,$US/mmbtu
2009-02-11,4.60,$US/mmbtu
2009-02-12,4.49,$US/mmbtu
2009-02-13,4.46,$US/mmbtu
2009-02-14,4.46,$US/mmbtu
2009-02-15,4.46,$US/mmbtu
2009-02-16,4.30,$US/mmbtu
2009-02-17,4.22,$US/mmbtu
2009-02-18,4.23,$US/mmbtu
2009-02-19,4.11,$US/mmbtu
2009-02-20,4.04,$US/mmbtu
2009-02-21,4.04,$US/mmbtu
2009-02-22,4.04,$US/mmbtu
2009-02-23,4.10,$US/mmbtu
2009-02-24,4.19,$US/mmbtu
2009-02-25,4.03,$US/mmbtu
2009-02-26,4.10,$US/mmbtu
2009-02-27,4.20,$US/mmbtu
2009-02-28,4.20,$US/mmbtu
2009-03-01,4.20,$US/mmbtu
2009-03-02,4.15,$US/mmbtu
2009-03-03,4.28,$US/mmbtu
2009-03-04,4.24,$US/mmbtu
2009-03-05,4.24,$US/mmbtu
2009-03-06,4.24,$US/mmbtu
2009-03-07,4.24,$US/mmbtu
2009-03-08,4.24,$US/mmbtu
2009-03-09,4.24,$US/mmbtu
2009-03-10,4.24,$US/mmbtu
2009-03-11,4.24,$US/mmbtu
2009-03-12,4.24,$US/mmbtu
2009-03-13,4.24,$US/mmbtu
2009-03-14,4.24,$US/mmbtu
2009-03-15,4.24,$US/mmbtu
2009-03-16,4.24,$US/mmbtu
2009-03-17,4.24,$US/mmbtu
2009-03-18,4.24,$US/mmbtu
2009-03-19,4.24,$US/mmbtu
2009-03-20,4.24,$US/mmbtu
2009-03-21,4.24,$US/mmbtu
2009-03-22,4.24,$US/mmbtu
2009-03-23,4.24,$US/mmbtu
2009-03-24,4.24,$US/mmbtu
2009-03-25,4.24,$US/mmbtu
2009-03-26,4.24,$US/mmbtu
2009-03-27,4.24,$US/mmbtu
2009-03-28,4.24,$US/mmbtu
2009-03-29,4.24,$US/mmbtu
2009-03-30,4.24,$US/mmbtu
2009-03-31,4.24,$US/mmbtu
2009-04-01,4.24,$US/mmbtu
2009-04-02,4.24,$US/mmbtu
2009-04-03,4.24,$US/mmbtu
2009-04-04,4.24,$US/mmbtu
2009-04-05,4.24,$US/mmbtu
2009-04-06,4.24,$US/mmbtu
2009-04-07,4.24,$US/mmbtu
2009-04-08,3.66,$US/mmbtu
2009-04-09,3.61,$US/mmbtu
2009-04-10,3.61,$US/mmbtu
2009-04-11,3.61,$US/mmbtu
2009-04-12,3.61,$US/mmbtu
2009-04-13,3.63,$US/mmbtu
2009-04-14,3.69,$US/mmbtu
2009-04-15,3.69,$US/mmbtu
2009-04-16,3.60,$US/mmbtu
2009-04-17,3.73,$US/mmbtu
2009-04-18,3.73,$US/mmbtu
2009-04-19,3.73,$US/mmbtu
2009-04-20,3.67,$US/mmbtu
2009-04-21,3.64,$US/mmbtu
2009-04-22,3.65,$US/mmbtu
2009-04-23,3.50,$US/mmbtu
2009-04-24,3.40,$US/mmbtu
2009-04-25,3.40,$US/mmbtu
2009-04-26,3.40,$US/mmbtu
2009-04-27,3.36,$US/mmbtu
2009-04-28,3.44,$US/mmbtu
2009-04-29,3.40,$US/mmbtu
2009-04-30,3.37,$US/mmbtu
2009-05-01,3.52,$US/mmbtu
2009-05-02,3.55,$US/mmbtu
2009-05-03,3.55,$US/mmbtu
2009-05-04,3.73,$US/mmbtu
2009-05-05,3.62,$US/mmbtu
2009-05-06,3.88,$US/mmbtu
2009-05-07,4.08,$US/mmbtu
2009-05-08,4.31,$US/mmbtu
2009-05-09,4.31,$US/mmbtu
2009-05-10,4.31,$US/mmbtu
2009-05-11,4.30,$US/mmbtu
2009-05-12,4.45,$US/mmbtu
2009-05-13,4.33,$US/mmbtu
2009-05-14,4.29,$US/mmbtu
2009-05-15,4.22,$US/mmbtu
2009-05-16,4.22,$US/mmbtu
2009-05-17,4.22,$US/mmbtu
2009-05-18,4.27,$US/mmbtu
2009-05-19,4.03,$US/mmbtu
2009-05-20,4.10,$US/mmbtu
2009-05-21,3.73,$US/mmbtu
2009-05-22,3.64,$US/mmbtu
2009-05-23,3.64,$US/mmbtu
2009-05-24,3.64,$US/mmbtu
2009-05-25,3.64,$US/mmbtu
2009-05-26,3.64,$US/mmbtu
2009-05-27,3.64,$US/mmbtu
2009-05-28,3.96,$US/mmbtu
2009-05-29,3.84,$US/mmbtu
2009-05-30,3.84,$US/mmbtu
2009-05-31,3.84,$US/mmbtu
2009-06-01,4.25,$US/mmbtu
2009-06-02,4.12,$US/mmbtu
2009-06-03,3.77,$US/mmbtu
2009-06-04,3.81,$US/mmbtu
2009-06-05,3.87,$US/mmbtu
2009-06-06,3.87,$US/mmbtu
2009-06-07,3.87,$US/mmbtu
2009-06-08,3.73,$US/mmbtu
2009-06-09,3.73,$US/mmbtu
2009-06-10,3.71,$US/mmbtu
2009-06-11,3.93,$US/mmbtu
2009-06-12,3.86,$US/mmbtu
2009-06-13,3.86,$US/mmbtu
2009-06-14,3.86,$US/mmbtu
2009-06-15,4.18,$US/mmbtu
2009-06-16,4.31,$US/mmbtu
2009-06-17,4.42,$US/mmbtu
2009-06-18,4.28,$US/mmbtu
2009-06-19,4.19,$US/mmbtu
2009-06-20,4.19,$US/mmbtu
2009-06-21,4.19,$US/mmbtu
2009-06-22,4.07,$US/mmbtu
2009-06-23,4.01,$US/mmbtu
2009-06-24,3.77,$US/mmbtu
2009-06-25,3.89,$US/mmbtu
2009-06-26,4.11,$US/mmbtu
2009-06-27,4.11,$US/mmbtu
2009-06-28,4.11,$US/mmbtu
2009-06-29,3.94,$US/mmbtu
2009-06-30,3.84,$US/mmbtu
2009-07-01,3.80,$US/mmbtu
2009-07-02,3.62,$US/mmbtu
2009-07-03,3.62,$US/mmbtu
2009-07-04,3.62,$US/mmbtu
2009-07-05,3.62,$US/mmbtu
2009-07-06,3.49,$US/mmbtu
2009-07-07,3.43,$US/mmbtu
2009-07-08,3.35,$US/mmbtu
2009-07-09,3.41,$US/mmbtu
2009-07-10,3.37,$US/mmbtu
2009-07-11,3.37,$US/mmbtu
2009-07-12,3.37,$US/mmbtu
2009-07-13,3.26,$US/mmbtu
2009-07-14,3.47,$US/mmbtu
2009-07-15,3.28,$US/mmbtu
2009-07-16,3.81,$US/mmbtu
2009-07-17,3.82,$US/mmbtu
2009-07-18,3.82,$US/mmbtu
2009-07-19,3.82,$US/mmbtu
2009-07-20,3.84,$US/mmbtu
2009-07-21,3.85,$US/mmbtu
2009-07-22,3.94,$US/mmbtu
2009-07-23,3.71,$US/mmbtu
2009-07-24,3.86,$US/mmbtu
2009-07-25,3.86,$US/mmbtu
2009-07-26,3.86,$US/mmbtu
2009-07-27,3.77,$US/mmbtu
2009-07-28,3.69,$US/mmbtu
2009-07-29,3.55,$US/mmbtu
2009-07-30,3.74,$US/mmbtu
2009-07-31,3.65,$US/mmbtu
2009-08-01,3.65,$US/mmbtu
2009-08-02,3.65,$US/mmbtu
2009-08-03,4.03,$US/mmbtu
2009-08-04,4.00,$US/mmbtu
2009-08-05,4.04,$US/mmbtu
2009-08-06,3.74,$US/mmbtu
2009-08-07,3.67,$US/mmbtu
2009-08-08,3.67,$US/mmbtu
2009-08-09,3.67,$US/mmbtu
2009-08-10,3.64,$US/mmbtu
2009-08-11,3.54,$US/mmbtu
2009-08-12,3.48,$US/mmbtu
2009-08-13,3.34,$US/mmbtu
2009-08-14,3.24,$US/mmbtu
2009-08-15,3.24,$US/mmbtu
2009-08-16,3.24,$US/mmbtu
2009-08-17,3.16,$US/mmbtu
2009-08-18,3.10,$US/mmbtu
2009-08-19,3.14,$US/mmbtu
2009-08-20,2.94,$US/mmbtu
2009-08-21,2.80,$US/mmbtu
2009-08-22,2.80,$US/mmbtu
2009-08-23,2.80,$US/mmbtu
2009-08-24,2.95,$US/mmbtu
2009-08-25,2.88,$US/mmbtu
2009-08-26,3.29,$US/mmbtu
2009-08-27,2.84,$US/mmbtu
2009-08-28,3.03,$US/mmbtu
2009-08-29,3.03,$US/mmbtu
2009-08-30,3.03,$US/mmbtu
2009-08-31,2.98,$US/mmbtu
2009-09-01,2.82,$US/mmbtu
2009-09-02,2.74,$US/mmbtu
2009-09-03,2.51,$US/mmbtu
2009-09-04,2.73,$US/mmbtu
2009-09-05,2.73,$US/mmbtu
2009-09-06,2.73,$US/mmbtu
2009-09-07,2.66,$US/mmbtu
2009-09-08,2.81,$US/mmbtu
2009-09-09,2.84,$US/mmbtu
2009-09-10,3.27,$US/mmbtu
2009-09-11,2.96,$US/mmbtu
2009-09-12,2.96,$US/mmbtu
2009-09-13,2.96,$US/mmbtu
2009-09-14,3.42,$US/mmbtu
2009-09-15,3.36,$US/mmbtu
2009-09-16,3.77,$US/mmbtu
2009-09-17,3.47,$US/mmbtu
2009-09-18,4.66,$US/mmbtu
2009-09-19,4.66,$US/mmbtu
2009-09-20,4.66,$US/mmbtu
2009-09-21,3.61,$US/mmbtu
2009-09-22,3.66,$US/mmbtu
2009-09-23,3.83,$US/mmbtu
2009-09-24,4.90,$US/mmbtu
2009-09-25,4.95,$US/mmbtu
2009-09-26,4.95,$US/mmbtu
2009-09-27,4.95,$US/mmbtu
2009-09-28,4.83,$US/mmbtu
2009-09-29,4.88,$US/mmbtu
2009-09-30,4.84,$US/mmbtu
2009-10-01,4.47,$US/mmbtu
2009-10-02,4.72,$US/mmbtu
2009-10-03,4.72,$US/mmbtu
2009-10-04,4.72,$US/mmbtu
2009-10-05,4.99,$US/mmbtu
2009-10-06,4.88,$US/mmbtu
2009-10-07,4.90,$US/mmbtu
2009-10-08,4.96,$US/mmbtu
2009-10-09,4.77,$US/mmbtu
2009-10-10,4.77,$US/mmbtu
2009-10-11,4.77,$US/mmbtu
2009-10-12,4.88,$US/mmbtu
2009-10-13,4.59,$US/mmbtu
2009-10-14,4.44,$US/mmbtu
2009-10-15,4.48,$US/mmbtu
2009-10-16,4.78,$US/mmbtu
2009-10-17,4.78,$US/mmbtu
2009-10-18,4.78,$US/mmbtu
2009-10-19,5.76,$US/mmbtu
2009-10-20,5.94,$US/mmbtu
2009-10-21,5.79,$US/mmbtu
2009-10-22,5.62,$US/mmbtu
2009-10-23,5.48,$US/mmbtu
2009-10-24,5.48,$US/mmbtu
2009-10-25,5.48,$US/mmbtu
2009-10-26,5.21,$US/mmbtu
2009-10-27,5.28,$US/mmbtu
2009-10-28,5.07,$US/mmbtu
2009-10-29,5.06,$US/mmbtu
2009-10-30,5.03,$US/mmbtu
2009-10-31,5.05,$US/mmbtu
2009-11-01,5.03,$US/mmbtu
2009-11-02,4.82,$US/mmbtu
2009-11-03,4.92,$US/mmbtu
2009-11-04,4.73,$US/mmbtu
2009-11-05,4.78,$US/mmbtu
2009-11-06,4.60,$US/mmbtu
2009-11-07,4.60,$US/mmbtu
2009-11-08,4.60,$US/mmbtu
2009-11-09,4.67,$US/mmbtu
2009-11-10,4.47,$US/mmbtu
2009-11-11,4.50,$US/mmbtu
2009-11-12,4.76,$US/mmbtu
2009-11-13,4.80,$US/mmbtu
2009-11-14,4.80,$US/mmbtu
2009-11-15,4.80,$US/mmbtu
2009-11-16,4.99,$US/mmbtu
2009-11-17,4.91,$US/mmbtu
2009-11-18,4.66,$US/mmbtu
2009-11-19,4.72,$US/mmbtu
2009-11-20,4.76,$US/mmbtu
2009-11-21,4.74,$US/mmbtu
2009-11-22,4.74,$US/mmbtu
2009-11-23,4.79,$US/mmbtu
2009-11-24,4.77,$US/mmbtu
2009-11-25,5.16,$US/mmbtu
2009-11-26,5.17,$US/mmbtu
2009-11-27,5.19,$US/mmbtu
2009-11-28,5.19,$US/mmbtu
2009-11-29,5.19,$US/mmbtu
2009-11-30,4.85,$US/mmbtu
2009-12-01,4.76,$US/mmbtu
2009-12-02,4.53,$US/mmbtu
2009-12-03,4.46,$US/mmbtu
2009-12-04,4.59,$US/mmbtu
2009-12-05,4.63,$US/mmbtu
2009-12-06,4.63,$US/mmbtu
2009-12-07,4.97,$US/mmbtu
2009-12-08,5.11,$US/mmbtu
2009-12-09,4.90,$US/mmbtu
2009-12-10,5.30,$US/mmbtu
2009-12-11,5.16,$US/mmbtu
2009-12-12,5.30,$US/mmbtu
2009-12-13,5.30,$US/mmbtu
2009-12-14,5.33,$US/mmbtu
2009-12-15,5.58,$US/mmbtu
2009-12-16,5.50,$US/mmbtu
2009-12-17,5.79,$US/mmbtu
2009-12-18,5.81,$US/mmbtu
2009-12-19,5.81,$US/mmbtu
2009-12-20,5.81,$US/mmbtu
2009-12-21,5.69,$US/mmbtu
2009-12-22,5.73,$US/mmbtu
2009-12-23,5.85,$US/mmbtu
2009-12-24,5.69,$US/mmbtu
2009-12-25,5.78,$US/mmbtu
2009-12-26,5.78,$US/mmbtu
2009-12-27,5.78,$US/mmbtu
2009-12-28,5.97,$US/mmbtu
2009-12-29,5.81,$US/mmbtu
2009-12-30,5.69,$US/mmbtu
2009-12-31,5.53,$US/mmbtu
2010-01-01,5.53,$US/mmbtu
2010-01-02,5.53,$US/mmbtu
2010-01-03,5.53,$US/mmbtu
2010-01-04,5.84,$US/mmbtu
2010-01-05,5.59,$US/mmbtu
2010-01-06,6.01,$US/mmbtu
2010-01-07,5.76,$US/mmbtu
2010-01-08,5.71,$US/mmbtu
2010-01-09,5.71,$US/mmbtu
2010-01-10,5.71,$US/mmbtu
2010-01-11,5.43,$US/mmbtu
2010-01-12,5.55,$US/mmbtu
2010-01-13,5.70,$US/mmbtu
2010-01-14,5.57,$US/mmbtu
2010-01-15,5.67,$US/mmbtu
2010-01-16,5.67,$US/mmbtu
2010-01-17,5.67,$US/mmbtu
2010-01-18,5.58,$US/mmbtu
2010-01-19,5.54,$US/mmbtu
2010-01-20,5.47,$US/mmbtu
2010-01-21,5.57,$US/mmbtu
2010-01-22,5.75,$US/mmbtu
2010-01-23,5.75,$US/mmbtu
2010-01-24,5.75,$US/mmbtu
2010-01-25,5.69,$US/mmbtu
2010-01-26,5.43,$US/mmbtu
2010-01-27,5.22,$US/mmbtu
2010-01-28,5.14,$US/mmbtu
2010-01-29,5.13,$US/mmbtu
2010-01-30,5.13,$US/mmbtu
2010-01-31,5.13,$US/mmbtu
2010-02-01,5.43,$US/mmbtu
2010-02-02,5.52,$US/mmbtu
2010-02-03,5.53,$US/mmbtu
2010-02-04,5.42,$US/mmbtu
2010-02-05,5.49,$US/mmbtu
2010-02-06,5.52,$US/mmbtu
2010-02-07,5.52,$US/mmbtu
2010-02-08,5.40,$US/mmbtu
2010-02-09,5.32,$US/mmbtu
2010-02-10,5.30,$US/mmbtu
2010-02-11,5.40,$US/mmbtu
2010-02-12,5.45,$US/mmbtu
2010-02-13,5.45,$US/mmbtu
2010-02-14,5.45,$US/mmbtu
2010-02-15,5.45,$US/mmbtu
2010-02-16,5.30,$US/mmbtu
2010-02-17,5.36,$US/mmbtu
2010-02-18,5.16,$US/mmbtu
2010-02-19,5.08,$US/mmbtu
2010-02-20,5.08,$US/mmbtu
2010-02-21,5.08,$US/mmbtu
2010-02-22,4.91,$US/mmbtu
2010-02-23,4.81,$US/mmbtu
2010-02-24,4.86,$US/mmbtu
2010-02-25,4.77,$US/mmbtu
2010-02-26,4.81,$US/mmbtu
2010-02-27,4.81,$US/mmbtu
2010-02-28,4.81,$US/mmbtu
2010-03-01,4.68,$US/mmbtu
2010-03-02,4.71,$US/mmbtu
2010-03-03,4.76,$US/mmbtu
2010-03-04,4.59,$US/mmbtu
2010-03-05,4.59,$US/mmbtu
2010-03-06,4.59,$US/mmbtu
2010-03-07,4.59,$US/mmbtu
2010-03-08,4.51,$US/mmbtu
2010-03-09,4.52,$US/mmbtu
2010-03-10,4.47,$US/mmbtu
2010-03-11,4.51,$US/mmbtu