Petroleum
Petroleum means the crude oil removed from the earth and the oils derived from tar sands, shale, and coal.
Source
40 CFR § 60.591
Scoping language
As used in this subpart, all terms not defined herein shall have the meaning given them in the act, in subpart A of part 60, or in subpart VV of part 60, and the following terms shall have the specific meanings given them.