"Colorado Oil & Gas Estimated Value, 2000 - 2011",, "Source: COGCC, CGS, NGI, EIA (11/2012)",, Units: $,, ,, Year,Total Estimated Oil Value (%),Total Estimated Natural Gas Value ($) 2000," 563,996,478 "," 2,837,759,393 " 2001," 475,198,012 "," 3,140,257,092 " 2002," 479,458,071 "," 2,230,568,991 " 2003," 605,790,070 "," 4,563,714,400 " 2004," 863,466,359 "," 5,927,968,492 " 2005," 1,236,881,897 "," 8,385,671,527 " 2006," 1,445,795,007 "," 7,524,150,277 " 2007," 1,668,526,468 "," 6,412,013,337 " 2008," 2,618,882,383 "," 10,992,690,952 " 2009," 1,600,104,331 "," 5,484,591,935 " 2010," 2,322,834,870 "," 7,031,635,899 " 2011," 3,394,639,345 "," 6,763,192,741 "