Parent-subsidiary linkages are based on relationships current as of the latest revision listed in the Update Log, which may vary from what was the case when a violation occurred. The penalty totals are adjusted to account for the fact that the individual entries below may include both agency records and settlement announcements for the same case; or else a penalty covering multiple locations may be listed in the individual records for each of the facilities. The totals are also adjusted to reflect cases in which federal and state or local agencies cooperated and issued separate announcements of the outcome. Duplicate or overlapping penalty amounts are marked with an asterisk in the list below.

DIAMOND SHAMROCK REFINING AND MARKETING; DIAMOND SHAMROCK REFINING LP; DIAMOND SHAMROCK REFINING LP DBA VALERO; DIAMOND SHAMROCK THREE RIVERS REFINERY; PREMCOR; Premcor Refining; PREMCOR REFINING GROUP / VALERO ENERGY NATIONAL CASE; TPI PETROLEUM; Ultramar, Ltd.; VALERO; VALERO BENICIA ASPHALT PLANT; VALERO CORPUS CHRISTI REFINERY EAST PLANT; VALERO CORPUS CHRISTI REFINERY WEST PLAN 483550005000089; VALERO CORPUS CHRISTI REFINERY WEST PLAN 483550005000160; VALERO CORPUS CHRISTI REFINERY WEST PLA [...]

For more details on misconduct by this company, see its entry in the Project On Government Oversight's Federal Contractor Misconduct Database.

For a summary of this company's federal contracts, see its page on Fedspending.

Subsidy Tracker data on financial assistance to this company by federal, state and local government agencies can be found here.