Not an SEC registrant

Tesoro Crude Oil Co

Customers

None disclosed

Suppliers

0 disclosed

Latest period

Dec 31, 2020

10-K/A filed 2022-03-04

Suppliers 1

Companies that disclose Tesoro Crude Oil Co as a major customer, as a share of their own revenue. 0 active, 1 lapsed.

Company	% of their revenue	Est. $ from Tesoro Crude Oil Co	Period	Trend	Status	Source
Whiting Holdings LLC Whiting Holdings LLC	13%	—	FY 2020-12-31	−1.0pp	Lapsed Last seen 2020-12-31	10-K/A 2022-03-04
Year Ended December 31, 2021 Shell Trading (US) Company 23%Marathon Oil Company 11% Year Ended December 31, 2020 Shell Trading (US) Company 14%Tesoro Crude Oil Co 13% Year Ended December 31, 2019 Tesoro Crude Oil Co 14%Philips 66 Company 12% Commodity derivative contracts held by the Company are with nine counterparties, all of which are participants in Whiting’s credit facility and all of which have investment-grade ratings from Moody’s and Standard & Poor’s. 10-K/A filed 2022-03-04 Period FY 2020-01-01 to 2020-12-31 (13%), FY 2019-01-01 to 2019-12-31 (14%)Accession 0001255474-22-000012 Year Ended December 31, 2020 Shell Trading (US) Company 14%Tesoro Crude Oil Co 13% Year Ended December 31, 2019 Tesoro Crude Oil Co 14%Philips 66 Company 12% Year Ended December 31, 2018 United Energy Trading, LLC 17%Tesoro Crude Oil Co 14%Philips 66 Company 11% Commodity derivative contracts held by the Company are with six counterparties, all of which are participants in Whiting’s credit facility and all of which have investment-grade ratings from Moody’s and Standard & Poor’s. 10-K filed 2021-02-25 Period FY 2018-01-01 to 2018-12-31 (14%)Accession 0001255474-21-000009 Year Ended December 31, 2019 Tesoro Crude Oil Co 14%Philips 66 Company 12% Year Ended December 31, 2018 United Energy Trading, LLC 17%Tesoro Crude Oil Co 14%Philips 66 Company 11% Year Ended December 31, 2017 Tesoro Crude Oil Co 18% Commodity derivative contracts held by the Company are with nine counterparties, all of which are participants in Whiting’s credit facility and all of which have investment-grade ratings from Moody’s and Standard & Poor’s. 10-K filed 2020-02-27 Period FY 2017-01-01 to 2017-12-31 (18%)Accession 0001255474-20-000007 Tesoro Crude Oil Co 15 % 10-K filed 2019-02-28 Period FY 2016-01-01 to 2016-12-31 (15%)Accession 0001255474-19-000009

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