We also sold 1.5 million barrels ( " MMBbls " ) of oil and natural gas liquids at an average price of $ 36.29 per barrel ( " Bbl " ) during the same period . For the first quarter of 2008 , we sold 17.7 Bcf of natural gas at an average price of $ 8.70 per Mcf and 2.2 MMBbls of oil and natural gas liquids at an average price of $ 92.52 per Bbl . On a natural gas equivalent ( " Bcfe " ) basis , we sold 21.4 Bcfe at an average price of $ 5.48 per Mcfe in the first quarter of 2009 compared to 30.8 Bcfe sold at an average price of $ 11.57 per Mcfe in the first quarter of 2008 .