Big Basin Petroleum Llc Claim Listing Return to Directory Rating (average) (0) Business Genre Manufacturing, Petroleum Business Website Address conquestoil.com Business Address, City 3105 2nd St, Gillette ZIP Code 82718 Business Phone Number 3076870406 Business Fax 3076854211 Ratings There are no reviews yet. Please login to leave a review. Please login to claim this listing. Username*: Email*: Password*: Log in | Lost your password?