After Hess Pulls Out, OXY Is Now Dominant US Producer Of Oil Via Carbon Injection -- Reuters -- June 21, 2017

Data points:

• Hess will sell its stake in EOR projects in the Permian Basin of West Texas and New Mexico to Occidental Petroleum for $600 million in cash
• the deal cements OXY's status as the dominant US producer of oil via carbon injection
• carbon injection: favored by faux environmentalists and oil producers alike
• carbon injection: could grow if Congress expands tax credits this summer
• OXY also gets complete control of naturally occurring sources of underground CO2
• this naturally occurring source: boosts OXY's bottom line 
• cost of carbon is generally the largest expense in EOR projects