Antonin Scalia’s dissent in U.S. v. Mead reflected his changing stance towards a case involving this company that hinged on the definition of the word “source.” This company filed (15[1])a RICO lawsuit as a counter-litigation to prevent paying out a 9.5 billion dollar class-action lawsuit brought by Steven Donziger. This company appealed a lawsuit regarding the EPA’s interpretation of the Clean Air Act brought by the Natural (*) Resources Defense Council. The Permanent Court of Arbitration held that this company could not be held accountable for damages to Lago Agrio in Ecuador. Courts look to federal agencies’ (10[1])interpretations of statutes in a “deference” named for this company. This company, whose brands include Texaco, originated from the California-based subsidiary of Standard Oil. For 10 points, name this energy company whose logo resembles downward-pointing arrows. ■END■