Gasland Correction Document. Colorado Oil and Gas Conservation Commission, October 29, 2010. The documentary Gasland has attracted wide attention. Among other things, it alleges that the hydraulic fracturing of oil and gas wells has contaminated nearby water wells with methane in a number of states including Colorado. Because an informed public debate requires accurate information, the COGCC has corrected several errors in Gasland''s portrayal of Colorado incidents.Download the fact sheet below.