Curtis W. Mewbourne
Mewbourne Oil Company is one of the most active oil and gas companies in the Anadarko (OK) and Permian (TX) basins.
Curtis Mewbourne is a big proponent of fracking, and his company uses the process regularly in all 14 of its drilling rigs.
In the 2012 election cycle Mewbourne Oil gave over $700,000 to conservative candidates, PACs and parties. Mewbourne himself gave another $316,299 in federal contributions and $830,000 in state contributions during the same election cycle.
Mewbourne's biggest state contribution to an individual in 2011-2012 was $100,000 to Greg Abbot, the Attorney General of Texas, who once claimed that climate scientists are "colluding and scheming" activists who manipulate their findings to "advance what they want the science to be."
Mewbourne also gave $100,000 to Barry Smitherman's campaign for Texas attorney general. In a November 2013 email to a fellow Republican, Smitherman, the chair of the Texas Railroad Commission (which regulates the oil and gas industry in Texas), once wrote: "I have been battling this global warming hoax for 6 years now. The earth is not warming..."