Top 100 Contractors in NAICS 324110: Petroleum Refineries, FY2021

Name: Top 100 Contractors in NAICS 324110: Petroleum Refineries, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 52% of FY2021 NAICS 324110 contract dollars

Contract obligations: $6,474,269,106 Net of deobligations, by contracts coded NAICS 324110
Contractors: 689 Parent companies with an obligation
Largest contractor: BP P.L.C. $937 million, 12.7% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	BP P.L.C. 5 awardees, including BP Products North America Inc., BP Singapore Pte. Limited and BP Oil International Limited Top agencies DLA (Defense Logistics Agency)	$936,529,707	12.7%	Rank history: #2 in FY2022, #2 in FY2023, #2 in FY2024 and #28 in FY2025; unchanged since FY2020.
2	Valero Energy Corporation Through Valero Marketing and Supply Co Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$496,661,238	6.7%	Rank history: #3 in FY2022, #3 in FY2023, #3 in FY2024 and #1 in FY2025; up 1 since FY2020.
3	Petromax Refining Company LLC Top agencies DLA (Defense Logistics Agency)	$425,035,849	5.8%	Rank history: #7 in FY2022, #5 in FY2023, #4 in FY2024 and #6 in FY2025; up 6 since FY2020.
4	Tesoro Refining & Marketing Company LLC 3 awardees, including Marathon Petroleum Company LP Top agencies DLA (Defense Logistics Agency)	$405,764,957	5.5%	Rank history: #4 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
5	Phillips 66 Company Top agencies DLA (Defense Logistics Agency)	$328,788,616	4.5%	Rank history: #8 in FY2022, #7 in FY2023, #6 in FY2024 and #2 in FY2025; down 3 since FY2020.
6	Idemitsu Kosan Co.,Ltd. Through Okinawa Idemitsu K.K. Top agencies DLA (Defense Logistics Agency)	$327,432,357	4.4%	Rank history: #1 in FY2022, #1 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2020.
7	The Bahrain Petroleum Company BSC (CLOSED) 2 awardees Top agencies DLA (Defense Logistics Agency)	$269,531,815	3.7%	Rank history: #10 in FY2022, #35 in FY2023, #77 in FY2024 and #82 in FY2025; up 4 since FY2020.
8	Par Pacific Holdings, Inc. 5 awardees, including Par Hawaii Refining LLC, US Oil & Refining Co and Hermes Consolidated LLC Top agencies DLA (Defense Logistics Agency)	$251,904,529	3.4%	Rank history: #11 in FY2022, #9 in FY2023, #8 in FY2024 and #7 in FY2025; unchanged since FY2020.
9	STC Bahrain B.S.C Closed Through S-Oil Corporation Top agencies DLA (Defense Logistics Agency)	$209,048,153	2.8%	Rank history: #9 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
10	Motor Oil (Hellas) Corinth Refineries S.A. 3 awardees, including Avinoil S.A. Top agencies DLA (Defense Logistics Agency)	$181,162,077	2.5%	Rank history: #5 in FY2022, #12 in FY2023, #5 in FY2024 and #4 in FY2025; up 2 since FY2020.
11	Globalfoundries U.S. 2 LLC 2 awardees, including ABU Dhabi National Oil Company for Distribution Pjsc and Moeve S.A. Top agencies DLA (Defense Logistics Agency) DOS (Department of State) USAF (Department of the Air Force)	$173,912,342	2.4%	Rank history: #16 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
12	United Capital Investments Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$134,271,939	1.8%	Rank history: #14 in FY2022, #15 in FY2023, #15 in FY2024 and #12 in FY2025; up 1 since FY2020.
13	S-Oil Corporation 2 awardees Top agencies DLA (Defense Logistics Agency)	$131,225,216	1.8%	Rank history: not on the FY2022–FY2023 lists, #12 in FY2024 and #3 in FY2025; down 9 since FY2020.
14	Arctic Slope Regional Corporation Through Petro Star Inc. Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) DHS (Department of Homeland Security)	$121,540,845	1.6%	Rank history: #13 in FY2022, #11 in FY2023, #10 in FY2024 and #9 in FY2025; up 3 since FY2020.
15	Kuwait Petroleum Corporation 4 awardees, including Kuwait Aviation Fuelling Company KSC and Q8 Quaser S.R.L. Con Unico Socio Top agencies DLA (Defense Logistics Agency)	$111,735,871	1.5%	Rank history: #20 in FY2022, #29 in FY2023, #22 in FY2024 and #29 in FY2025; unchanged since FY2020.
16	Red Star Enterprises Limited Top agencies DLA (Defense Logistics Agency)	$95,885,812	1.3%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
17	Placid Refining Company LLC 2 awardees Top agencies DLA (Defense Logistics Agency)	$94,797,137	1.3%	Rank history: #12 in FY2022, #10 in FY2023, #13 in FY2024 and #13 in FY2025; up 4 since FY2020.
18	Lazarus Energy Holdings LLC Top agencies DLA (Defense Logistics Agency)	$92,195,828	1.2%	Rank history: #21 in FY2022, #20 in FY2023, #21 in FY2024 and #19 in FY2025; up 7 since FY2020.
19	Cosmo Oil Marketing Co. Ltd. Top agencies DLA (Defense Logistics Agency)	$87,759,085	1.2%	Rank history: #46 in FY2022, #43 in FY2023, #46 in FY2024 and #42 in FY2025; up 14 since FY2020.
20	Delek US Holdings, Inc. Through Alon Usa, LP Top agencies DLA (Defense Logistics Agency)	$84,826,692	1.1%	Rank history: #18 in FY2022, #21 in FY2023, #39 in FY2024 and not on the FY2025 list; up 4 since FY2020.
21	Montana Refining Company Inc. 3 awardees, including Calumet Shreveport Fuels LLC, The San Antonio Refinery LLC and Calumet Montana Refining, LLC Top agencies DLA (Defense Logistics Agency)	$79,511,647	1.1%	Rank history: #22 in FY2022, #31 in FY2023, #45 in FY2024 and not on the FY2025 list; down 1 since FY2020.
22	BBA Aviation PLC 11 awardees, including Epic Aviation, LLC, Signature Flight Support Corporation and Piedmont Hawthorne Aviation, L.L.C. Top agencies DLA (Defense Logistics Agency)	$78,259,759	1.1%	Rank history: #19 in FY2022, #25 in FY2023, #36 in FY2024 and not on the FY2025 list; up 6 since FY2020.
23	Diamond Geeks, Corp. Through Dgci Corporation Top agencies DLA (Defense Logistics Agency)	$59,828,033	0.8%	Rank history: #15 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
24	Chevron Corporation Through Chevron USA Inc. Top agencies DLA (Defense Logistics Agency)	$50,178,255	0.7%	Rank history: #23 in FY2022, #16 in FY2023, #20 in FY2024 and #8 in FY2025; up 209 since FY2020.
25	World Fuel Services Corporation 9 awardees, including Papco, Inc., World Fuel Services Europe, Ltd. and World Fuel Services Trading Fzco Top agencies DLA (Defense Logistics Agency)	$47,588,147	0.6%	Rank history: #24 in FY2022, #33 in FY2023, #19 in FY2024 and #18 in FY2025; up 4 since FY2020.
26	Brad Hall & Associates, Inc. 2 awardees, including Senergy Petroleum LLC Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) DOE (Department of Energy)	$46,155,175	0.6%	Rank history: #29 in FY2022, #42 in FY2023, #60 in FY2024 and #79 in FY2025; up 1 since FY2020.
27	RRH Corporation Through Hunt Refining Company Top agencies DLA (Defense Logistics Agency)	$45,459,690	0.6%	Rank history: #30 in FY2022 and not on the FY2023–FY2025 lists; up 12 since FY2020.
28	Vitol Inc. Top agencies DLA (Defense Logistics Agency)	$44,996,371	0.6%	Rank history: #6 in FY2022, #6 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2020.
29	Stonewin Capital LP 2 awardees, including Stonewin LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$42,382,429	0.6%	Rank history: #34 in FY2022, #38 in FY2023, #44 in FY2024 and #36 in FY2025; up 14 since FY2020.
30	Petromax, LLC Top agencies DLA (Defense Logistics Agency)	$36,105,850	0.5%	Rank history: #39 in FY2022, #22 in FY2023, #41 in FY2024 and not on the FY2025 list; up 25 since FY2020.
31	CRS Acquisition Corp Through Avfuel Corp Top agencies DLA (Defense Logistics Agency)	$34,335,158	0.5%	Rank history: #26 in FY2022, #26 in FY2023, #27 in FY2024 and not on the FY2025 list; up 5 since FY2020.
32	Petroleum Traders Corp Top agencies DLA (Defense Logistics Agency) USDA (Department of Agriculture)	$33,999,843	0.5%	Rank history: #32 in FY2022, #40 in FY2023, #40 in FY2024 and #37 in FY2025; up 5 since FY2020.
33	BP Oil International Limited Top agencies DLA (Defense Logistics Agency)	$32,075,734	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
34	Sinclair Oil Corporation Top agencies DLA (Defense Logistics Agency)	$29,345,253	0.4%	Rank history: #28 in FY2022, #37 in FY2023, #42 in FY2024 and not on the FY2025 list; up 7 since FY2020.
35	Cenovus Energy Inc Through Husky Marketing and Supply Company Top agencies DLA (Defense Logistics Agency)	$27,848,517	0.4%	Rank history: #25 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
36	SK Energy Co., Ltd. Top agencies DLA (Defense Logistics Agency)	$27,191,186	0.4%	Rank history: #40 in FY2022, #36 in FY2023, #26 in FY2024 and not on the FY2025 list; down 17 since FY2020.
37	Crowley Government Services Inc. 4 awardees, including Crowley Fuels LLC Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior)	$24,685,963	0.3%	Rank history: #65 in FY2022, not on the FY2023–FY2024 lists and #39 in FY2025; up 29 since FY2020.
38	Husky Energy Inc Through Husky Marketing and Supply Company Top agencies DLA (Defense Logistics Agency)	$21,888,330	0.3%	Rank history: #47 in FY2022, #27 in FY2023, #37 in FY2024 and not on the FY2025 list; down 3 since FY2020.
39	Clipper Oil, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) DOI (Department of the Interior)	$21,779,546	0.3%	Rank history: #45 in FY2022, #45 in FY2023, #34 in FY2024 and #30 in FY2025; up 1 since FY2020.
40	Jacksonville Jetport LLC Top agencies DLA (Defense Logistics Agency)	$17,079,387	0.2%	Rank history: #53 in FY2022, #55 in FY2023, #65 in FY2024 and #52 in FY2025; up 14 since FY2020.
41	Valero Marketing and Supply Co Top agencies DLA (Defense Logistics Agency)	$16,642,436	0.2%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
42	Pinnacle Petroleum, Inc. Top agencies DLA (Defense Logistics Agency)	$16,158,651	0.2%	Rank history: #49 in FY2022, #54 in FY2023, #53 in FY2024 and #43 in FY2025; up 8 since FY2020.
43	Mcclellan Jet Services, LLC Top agencies DLA (Defense Logistics Agency)	$14,329,299	0.2%	Rank history: #73 in FY2022, #90 in FY2023, #70 in FY2024 and #44 in FY2025; up 21 since FY2020.
44	Falcon Fuels, Inc. Top agencies DLA (Defense Logistics Agency)	$13,989,652	0.2%	Rank history: #66 in FY2022, #60 in FY2023, #66 in FY2024 and not on the FY2025 list; up 21 since FY2020.
45	Freeman Holdings of Riverside, L.L.C. Top agencies DLA (Defense Logistics Agency)	$13,948,180	0.2%	Rank history: #60 in FY2022, #58 in FY2023, #52 in FY2024 and #53 in FY2025; up 15 since FY2020.
46	Jamal Al Aalem Co Top agencies DLA (Defense Logistics Agency)	$12,989,866	0.2%	Rank history: #69 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
47	AML Global Limited Top agencies DLA (Defense Logistics Agency)	$12,405,727	0.2%	Rank history: #51 in FY2022, #48 in FY2023, #50 in FY2024 and #47 in FY2025; up 132 since FY2020.
48	Qatar Fuel (Woqod) Top agencies DLA (Defense Logistics Agency)	$12,320,922	0.2%	Rank history: #59 in FY2022, #83 in FY2023, #56 in FY2024 and #54 in FY2025; up 11 since FY2020.
49	BP Products North America Inc. Top agencies DLA (Defense Logistics Agency)	$12,162,499	0.2%	Rank history: not on the FY2022–FY2025 lists; down 2 since FY2020.
50	Campbell Oil Co Top agencies DLA (Defense Logistics Agency)	$12,030,079	0.2%	Rank history: #54 in FY2022, #62 in FY2023, #73 in FY2024 and #67 in FY2025; up 198 since FY2020.
51	Glasgow Prestwick Airport Limited Top agencies DLA (Defense Logistics Agency)	$11,740,025	0.2%	Rank history: #48 in FY2022, #49 in FY2023, #62 in FY2024 and not on the FY2025 list; up 26 since FY2020.
52	GS Caltex Corporation Top agencies DLA (Defense Logistics Agency)	$11,719,846	0.2%	Rank history: #33 in FY2022, not on the FY2023 list, #16 in FY2024 and #17 in FY2025; down 21 since FY2020.
53	Saltchuk Resources, Inc. Through Delta Western, LLC Top agencies DLA (Defense Logistics Agency)	$11,290,582	0.2%	Rank history: #55 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
54	Foster Fuels, Inc. Top agencies DLA (Defense Logistics Agency)	$11,216,892	0.2%	Rank history: #67 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; up 77 since FY2020.
55	Ryuseki Corporation Top agencies DLA (Defense Logistics Agency)	$11,191,675	0.2%	Rank history: #52 in FY2022, #57 in FY2023, #63 in FY2024 and #50 in FY2025; up 17 since FY2020.
56	Hyundai Oilbank Co. Ltd. Through HD Hyundai Oilbank Co., Ltd Top agencies DLA (Defense Logistics Agency)	$10,935,802	0.1%	Rank history: #44 in FY2022, #87 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
57	Exxon Mobil Corp 2 awardees, including Mobil Oil Guam Inc. Top agencies DLA (Defense Logistics Agency)	$10,707,130	0.1%	Rank history: #35 in FY2022, #17 in FY2023, #18 in FY2024 and not on the FY2025 list; down 39 since FY2020.
58	Eneos Sun-Energy Corporation Top agencies DLA (Defense Logistics Agency)	$9,544,571	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Mansfield Energy Corp. Through Mansfield Oil Company of Gainesville Inc. Top agencies DLA (Defense Logistics Agency)	$9,239,050	0.1%	Rank history: #86 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2020.
60	Calumet Shreveport Fuels LLC Top agencies DLA (Defense Logistics Agency)	$8,531,312	0.1%	Rank history: not on the FY2022–FY2025 lists; up 101 since FY2020.
61	S.C.A. - Shipping Consultants Associated Ltd. Top agencies DLA (Defense Logistics Agency)	$8,388,206	0.1%	Rank history: #56 in FY2022, not on the FY2023 list, #93 in FY2024 and #75 in FY2025; up 31 since FY2020.
62	City of Bangor City Hall Through City of Bangor Top agencies DLA (Defense Logistics Agency)	$7,968,223	0.1%	Rank history: #37 in FY2022, #44 in FY2023, #49 in FY2024 and not on the FY2025 list; down 9 since FY2020.
63	Hunt Refining Company Top agencies DLA (Defense Logistics Agency)	$7,466,904	0.1%	Rank history: not on the FY2022–FY2025 lists; up 59 since FY2020.
64	Truman Arnold Companies 11 awardees Top agencies DLA (Defense Logistics Agency)	$7,463,106	0.1%	Rank history: #58 in FY2022, #70 in FY2023 and not on the FY2024–FY2025 lists; up 42 since FY2020.
65	Imperial Flying Service Inc. Top agencies DLA (Defense Logistics Agency)	$7,449,358	0.1%	Rank history: #82 in FY2022, #71 in FY2023, #86 in FY2024 and #68 in FY2025; up 2 since FY2020.
66	Us21 Inc. Top agencies DLA (Defense Logistics Agency)	$7,159,524	0.1%	Rank history: #87 in FY2022, not on the FY2023–FY2024 lists and #90 in FY2025; down 14 since FY2020.
67	Moeve S.A. Top agencies DLA (Defense Logistics Agency)	$6,890,386	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Husky Marketing and Supply Company Top agencies DLA (Defense Logistics Agency)	$6,794,802	0.1%	Rank history: not on the FY2022–FY2023 lists, #32 in FY2024 and #25 in FY2025; up 76 since FY2020.
69	Alliance Aviation Management Ltd Top agencies DLA (Defense Logistics Agency)	$6,679,094	0.1%	Rank history: #85 in FY2022, #99 in FY2023, #89 in FY2024 and #76 in FY2025; up 14 since FY2020.
70	Air BP Italia S.P.A. Top agencies DLA (Defense Logistics Agency)	$6,592,061	0.1%	Rank history: not on the FY2022–FY2025 lists; down 14 since FY2020.
71	Hanwa Co.,Ltd. Top agencies DLA (Defense Logistics Agency) DOS (Department of State)	$5,793,627	0.1%	Rank history: #78 in FY2022, #85 in FY2023 and not on the FY2024–FY2025 lists; up 32 since FY2020.
72	State Oil Limited Top agencies DLA (Defense Logistics Agency)	$5,591,289	0.1%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
73	Associated Energy Group LLC Top agencies DLA (Defense Logistics Agency)	$5,566,391	0.1%	Rank history: not on the FY2022 list, #59 in FY2023, #55 in FY2024 and #35 in FY2025; up 5 since FY2020.
74	Ahntech Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$5,533,168	0.1%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; down 4 since FY2020.
75	Global Defense Logistics S.R.L. Top agencies DLA (Defense Logistics Agency)	$5,510,968	0.1%	Rank history: #71 in FY2022, #84 in FY2023, #87 in FY2024 and #83 in FY2025; up 15 since FY2020.
76	Selfinvest APS 4 awardees, including KPI Oceanconnect (Cyprus) Ltd, Glander International Bunkering, Inc. and KPI Oceanconnect Inc. Top agencies DLA (Defense Logistics Agency)	$5,329,699	0.1%	Rank history: not on the FY2022–FY2025 lists; up 5 since FY2020.
77	UNO Honduras S.a. DE C.V. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$5,187,293	0.1%	Rank history: #84 in FY2022, not on the FY2023–FY2024 lists and #89 in FY2025; up 17 since FY2020.
78	American Textile Systems Top agencies DLA (Defense Logistics Agency)	$5,137,690	0.1%	Rank history: not on the FY2022–FY2025 lists; up 21 since FY2020.
79	Lykins Companies Incorporated Through Lykins Oil Co Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$5,027,253	0.1%	Rank history: not on the FY2022–FY2025 lists; up 45 since FY2020.
80	Black Bull Group Inc. Top agencies DLA (Defense Logistics Agency)	$4,829,990	0.1%	Rank history: not on the FY2022–FY2025 lists; up 180 since FY2020.
81	Aarcorp Through AAR Aircraft Services, Inc. Top agencies DLA (Defense Logistics Agency)	$4,757,972	0.1%	Rank history: #89 in FY2022 and not on the FY2023–FY2025 lists; up 38 since FY2020.
82	Chevron USA Inc. Top agencies DLA (Defense Logistics Agency)	$4,638,465	0.1%	Rank history: not on the FY2022–FY2025 lists; up 122 since FY2020.
83	Petro 49 Inc. Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce) DOI (Department of the Interior)	$4,569,862	0.1%	Rank history: not on the FY2022 list, #69 in FY2023, not on the FY2024 list and #87 in FY2025; down 8 since FY2020.
84	TC Chemicals, LLC Top agencies DLA (Defense Logistics Agency)	$4,536,237	0.1%	Rank history: #62 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
85	Hanjin Logistics Corporation Top agencies DLA (Defense Logistics Agency)	$4,473,681	0.1%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
86	Fannon Petroleum Services, Inc. Top agencies HHS (Department of Health and Human Services) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$4,467,789	0.1%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.
87	Freeman Holdings of Arizona, L.l.c Top agencies DLA (Defense Logistics Agency)	$4,415,156	0.1%	Rank history: not on the FY2022 list, #95 in FY2023, #98 in FY2024 and #77 in FY2025; up 10 since FY2020.
88	Merrimac Petroleum, Inc. Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) Navy (Department of the Navy)	$4,349,573	0.1%	Rank history: not on the FY2022 list, #92 in FY2023, not on the FY2024 list and #64 in FY2025; up 38 since FY2020.
89	Irving Oil Terminals Inc. Top agencies DLA (Defense Logistics Agency)	$4,315,205	0.1%	Rank history: #68 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; up 22 since FY2020.
90	John W. Stone Oil Distributor, L.L.C. Top agencies DLA (Defense Logistics Agency)	$4,263,684	0.1%	Rank history: #98 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
91	Glenn Oil Company LLC Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) Army (Department of the Army)	$4,160,781	0.1%	Rank history: #92 in FY2022, not on the FY2023 list, #92 in FY2024 and not on the FY2025 list; up 76 since FY2020.
92	Chulalongkorn University 2 awardees, including PTT Oil and Retail Business Public Company Limited and PTT Public Company Limited Top agencies DLA (Defense Logistics Agency)	$4,147,988	0.1%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; up 48 since FY2020.
93	Freeman Holdings of Washington, L.l.c Top agencies DLA (Defense Logistics Agency)	$3,839,401	0.1%	Rank history: not on the FY2022–FY2025 lists; up 64 since FY2020.
94	Lancair Corp. Top agencies DLA (Defense Logistics Agency)	$3,699,963	0.1%	Rank history: not on the FY2022–FY2025 lists; down 23 since FY2020.
95	Ryzhka International LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) VA (Department of Veterans Affairs)	$3,684,973	<0.1%	Rank history: not on the FY2022–FY2023 lists, #96 in FY2024 and #74 in FY2025; up 111 since FY2020.
96	Crudenergy Llc. Top agencies DLA (Defense Logistics Agency)	$3,618,263	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
97	Mers LLC Top agencies DLA (Defense Logistics Agency)	$3,555,118	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 55 since FY2020.
98	Defense Energy Syndicate, LLC Top agencies DLA (Defense Logistics Agency)	$3,516,367	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 27 since FY2020.
99	Cordillera Corporation 2 awardees, including Colorado Jetcenter, Inc. and Denver Jetcenter, Inc. Top agencies DLA (Defense Logistics Agency)	$3,429,712	<0.1%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; up 257 since FY2020.
100	County of ST Clair Top agencies DLA (Defense Logistics Agency)	$3,377,848	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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100 of 689 contractors listed here. See the rest on GovTribe.

How this ranking works

Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $7.38 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2021 ran Oct 1, 2020 – Sep 30, 2021. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2020. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2020 takes the color of the rank change beside it.
Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 NAICS 324110 contractors in FY2021?

1. BP P.L.C. ($937M), 2. Valero Energy Corporation ($497M), 3. Petromax Refining Company LLC ($425M), 4. Tesoro Refining & Marketing Company LLC ($406M), 5. Phillips 66 Company ($329M), 6. Idemitsu Kosan Co.,Ltd. ($327M), 7. The Bahrain Petroleum Company BSC (CLOSED) ($270M), 8. Par Pacific Holdings, Inc. ($252M), 9. STC Bahrain B.S.C Closed ($209M), 10. Motor Oil (Hellas) Corinth Refineries S.A. ($181M).

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