Top 100 Contractors in PSC 91: Fuels, Lubricants, Oils, Waxes, FY2023

Name: Top 100 Contractors in PSC 91: Fuels, Lubricants, Oils, Waxes, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 53% of FY2023 PSC 91 contract dollars

Contract obligations: $13,134,000,906 Net of deobligations, by contracts coded PSC 91 or a code under it
Contractors: 863 Parent companies with an obligation
Largest contractor: Idemitsu Kosan Co.,Ltd. $1.73 billion, 11.8% 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	Idemitsu Kosan Co.,Ltd. Through Okinawa Idemitsu K.K. Top agencies DLA (Defense Logistics Agency)	$1,732,832,853	11.8%	Rank history: #6 in FY2021, #1 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
2	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)	$1,459,613,919	9.9%	Rank history: #1 in FY2021, #2 in FY2022, #2 in FY2024 and #29 in FY2025; unchanged since FY2022.
3	Valero Energy Corporation Through Valero Marketing and Supply Co Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$1,217,355,482	8.3%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2024 and #1 in FY2025; unchanged since FY2022.
4	Okinawa Idemitsu K.K. Top agencies DLA (Defense Logistics Agency)	$679,034,516	4.6%	Rank history: not on the FY2021–FY2022 lists, #1 in FY2024 and #14 in FY2025; new.
5	Petromax Refining Company LLC Top agencies DLA (Defense Logistics Agency)	$585,160,618	4.0%	Rank history: #3 in FY2021, #7 in FY2022, #4 in FY2024 and #6 in FY2025; up 2 since FY2022.
6	Vitol Inc. Through Vitol Aviation Co Top agencies DLA (Defense Logistics Agency)	$533,709,564	3.6%	Rank history: #29 in FY2021, #6 in FY2022 and not on the FY2024–FY2025 lists; unchanged since FY2022.
7	Phillips 66 Company Top agencies DLA (Defense Logistics Agency)	$479,323,736	3.3%	Rank history: #5 in FY2021, #8 in FY2022, #6 in FY2024 and #2 in FY2025; up 1 since FY2022.
8	Kingdom of Saudi Arabia Through S-Oil Corporation Top agencies DLA (Defense Logistics Agency)	$440,169,565	3.0%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2024 and not on the FY2025 list; new.
9	Par Pacific Holdings, Inc. 3 awardees, including Par Hawaii Refining LLC, US Oil & Refining Co and Hermes Consolidated LLC Top agencies DLA (Defense Logistics Agency)	$339,630,124	2.3%	Rank history: #8 in FY2021, #11 in FY2022, #9 in FY2024 and #8 in FY2025; up 2 since FY2022.
10	Placid Refining Company LLC Top agencies DLA (Defense Logistics Agency)	$280,256,454	1.9%	Rank history: #17 in FY2021, #12 in FY2022, #13 in FY2024 and #13 in FY2025; up 2 since FY2022.
11	Arctic Slope Regional Corporation Through Petro Star Inc. Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$276,062,013	1.9%	Rank history: #14 in FY2021, #13 in FY2022, #8 in FY2024 and #7 in FY2025; up 2 since FY2022.
12	Motor Oil (Hellas) Corinth Refineries S.A. 3 awardees, including Avinoil S.A. and Coral Oil and Chemical Products Societe Anonyme Top agencies DLA (Defense Logistics Agency) DOS (Department of State)	$270,451,338	1.8%	Rank history: #10 in FY2021, #5 in FY2022, #5 in FY2024 and #4 in FY2025; down 7 since FY2022.
13	Marathon Petroleum Company LP Top agencies DLA (Defense Logistics Agency)	$254,443,571	1.7%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2024 and #5 in FY2025; new.
14	Globalfoundries U.S. 2 LLC Through Moeve S.A. Top agencies DLA (Defense Logistics Agency) DOS (Department of State)	$214,551,238	1.5%	Rank history: #11 in FY2021, #16 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
15	United Capital Investments Group 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$201,742,525	1.4%	Rank history: #12 in FY2021, #14 in FY2022, #15 in FY2024 and #12 in FY2025; down 1 since FY2022.
16	Chevron Corporation 2 awardees, including Chevron USA Inc. Top agencies DLA (Defense Logistics Agency)	$183,511,353	1.2%	Rank history: #25 in FY2021, #23 in FY2022, #20 in FY2024 and #9 in FY2025; up 7 since FY2022.
17	Air Products and Chemicals, Inc. Top agencies NASA (National Aeronautics and Space Administration) DLA (Defense Logistics Agency)	$181,997,618	1.2%	Rank history: #31 in FY2021, #34 in FY2022, #21 in FY2024 and #21 in FY2025; up 17 since FY2022.
18	Exxon Mobil Corp 3 awardees, including Exxonmobil Marine Limited and Mobil Oil Guam Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$168,241,053	1.1%	Rank history: #40 in FY2021, #29 in FY2022, #17 in FY2024 and #62 in FY2025; up 11 since FY2022.
19	Shell Energy North America (US) L.P. Through Equilon Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$140,096,068	1.0%	Rank history: not on the FY2021 list, #17 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
20	Science Applications International Corporation 2 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$139,716,296	1.0%	Rank history: #21 in FY2021, #24 in FY2022, #55 in FY2024 and not on the FY2025 list; up 4 since FY2022.
21	Tesoro Refining & Marketing Company LLC 2 awardees, including Marathon Petroleum Company LP Top agencies DLA (Defense Logistics Agency)	$130,669,726	0.9%	Rank history: #4 in FY2021, #4 in FY2022 and not on the FY2024–FY2025 lists; down 17 since FY2022.
22	Lazarus Energy Holdings LLC Top agencies DLA (Defense Logistics Agency)	$129,276,040	0.9%	Rank history: #18 in FY2021, #21 in FY2022, #22 in FY2024 and #19 in FY2025; down 1 since FY2022.
23	Delek US Holdings, Inc. Through Alon Usa, LP Top agencies DLA (Defense Logistics Agency)	$126,771,402	0.9%	Rank history: #20 in FY2021, #18 in FY2022, #40 in FY2024 and not on the FY2025 list; down 5 since FY2022.
24	Petromax, LLC Top agencies DLA (Defense Logistics Agency)	$114,998,028	0.8%	Rank history: #32 in FY2021, #41 in FY2022, #42 in FY2024 and not on the FY2025 list; up 17 since FY2022.
25	STC Bahrain B.S.C Closed Through S-Oil Corporation Top agencies DLA (Defense Logistics Agency)	$114,738,458	0.8%	Rank history: #9 in FY2021, #9 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
26	Wynnewood Energy Co LLC Top agencies DLA (Defense Logistics Agency)	$108,048,803	0.7%	Rank history: not on the FY2021 list, #43 in FY2022, #36 in FY2024 and not on the FY2025 list; up 17 since FY2022.
27	CRS Acquisition Corp Through Avfuel Corp Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$96,541,162	0.7%	Rank history: #33 in FY2021, #27 in FY2022, #28 in FY2024 and not on the FY2025 list; unchanged since FY2022.
28	BBA Aviation PLC 12 awardees, including Epic Aviation, LLC, Signature Flight Support LLC and Piedmont Hawthorne Aviation, L.L.C. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$95,855,130	0.7%	Rank history: #23 in FY2021, #19 in FY2022, #37 in FY2024 and not on the FY2025 list; down 9 since FY2022.
29	Husky Energy Inc Through Husky Marketing and Supply Company Top agencies DLA (Defense Logistics Agency)	$95,667,460	0.7%	Rank history: #43 in FY2021, #51 in FY2022, #38 in FY2024 and not on the FY2025 list; up 22 since FY2022.
30	Vitol Netherlands Cooperatief U.a. 2 awardees, including Vitol Aviation Co and Vitol Inc. Top agencies DLA (Defense Logistics Agency)	$93,950,137	0.6%	Rank history: not on the FY2021–FY2022 lists, #11 in FY2024 and not on the FY2025 list; new.
31	Kuwait Petroleum Corporation 3 awardees, including Kuwait Aviation Fuelling Company KSC and Q8 Quaser S.R.L. Con Unico Socio Top agencies DLA (Defense Logistics Agency)	$90,649,115	0.6%	Rank history: #15 in FY2021, #20 in FY2022, #23 in FY2024 and #30 in FY2025; down 11 since FY2022.
32	Repeat Consultants International LLC Top agencies DLA (Defense Logistics Agency)	$89,886,879	0.6%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2024 and #35 in FY2025; up 173 since FY2022.
33	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)	$89,145,318	0.6%	Rank history: #22 in FY2021, #22 in FY2022, #46 in FY2024 and not on the FY2025 list; down 11 since FY2022.
34	Diamond Geeks, Corp. Through Dgci Corporation Top agencies DLA (Defense Logistics Agency)	$82,846,789	0.6%	Rank history: #24 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
35	World Fuel Services Corporation 10 awardees, including World Fuel Services (Singapore) PTE Ltd, World Fuel Services Trading Fzco and Petro Air, Corp Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DOI (Department of the Interior)	$81,096,644	0.6%	Rank history: #26 in FY2021, #25 in FY2022, #19 in FY2024 and #18 in FY2025; down 10 since FY2022.
36	QATARENERGY Top agencies DLA (Defense Logistics Agency)	$75,657,569	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 366 since FY2022.
37	The Bahrain Petroleum Company BSC (CLOSED) 2 awardees Top agencies DLA (Defense Logistics Agency)	$74,672,387	0.5%	Rank history: #7 in FY2021, #10 in FY2022, #82 in FY2024 and #90 in FY2025; down 27 since FY2022.
38	SK Energy Co., Ltd. Top agencies DLA (Defense Logistics Agency)	$64,273,861	0.4%	Rank history: #39 in FY2021, #42 in FY2022, #27 in FY2024 and not on the FY2025 list; up 4 since FY2022.
39	Sinclair Oil Corporation Top agencies DLA (Defense Logistics Agency)	$62,135,288	0.4%	Rank history: #37 in FY2021, #30 in FY2022, #43 in FY2024 and not on the FY2025 list; down 9 since FY2022.
40	Stonewin Capital LP 2 awardees, including Stonewin LLC Top agencies DLA (Defense Logistics Agency)	$56,913,837	0.4%	Rank history: #30 in FY2021, #37 in FY2022, #45 in FY2024 and #38 in FY2025; down 3 since FY2022.
41	Hanwha Totalenergies Petrochemical Co., Ltd. Top agencies DLA (Defense Logistics Agency)	$55,152,359	0.4%	Rank history: not on the FY2021 list, #38 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
42	Petroleum Traders Corp Top agencies DLA (Defense Logistics Agency)	$51,932,102	0.4%	Rank history: #34 in FY2021, #35 in FY2022, #41 in FY2024 and #40 in FY2025; down 7 since FY2022.
43	South National for Logistics Top agencies DLA (Defense Logistics Agency)	$43,573,659	0.3%	Rank history: not on the FY2021 list, #68 in FY2022, #25 in FY2024 and #20 in FY2025; up 25 since FY2022.
44	Brad Hall & Associates Inc 2 awardees, including Senergy Petroleum LLC Top agencies DLA (Defense Logistics Agency)	$41,799,099	0.3%	Rank history: #27 in FY2021, #31 in FY2022, #62 in FY2024 and #87 in FY2025; down 13 since FY2022.
45	Cosmo Oil Marketing Co. Ltd. Top agencies DLA (Defense Logistics Agency)	$38,888,785	0.3%	Rank history: #19 in FY2021, #50 in FY2022, #47 in FY2024 and #46 in FY2025; up 5 since FY2022.
46	City of Bangor City Hall Through City of Bangor Top agencies DLA (Defense Logistics Agency)	$35,463,211	0.2%	Rank history: #69 in FY2021, #39 in FY2022, #49 in FY2024 and not on the FY2025 list; down 7 since FY2022.
47	Usibelli Coal Mine, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$35,172,628	0.2%	Rank history: #36 in FY2021, #45 in FY2022, #63 in FY2024 and #50 in FY2025; down 2 since FY2022.
48	Clipper Oil, Inc. Top agencies DLA (Defense Logistics Agency) USSOCOM (United States Special Operations Command) Army (Department of the Army)	$29,952,549	0.2%	Rank history: #42 in FY2021, #48 in FY2022, #35 in FY2024 and #32 in FY2025; unchanged since FY2022.
49	Crowley Government Services Inc. 2 awardees, including Crowley Fuels LLC Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) USAF (Department of the Air Force)	$29,655,413	0.2%	Rank history: not on the FY2021–FY2022 lists, #80 in FY2024 and not on the FY2025 list; new.
50	Independent Marine Oil Services LLC Top agencies DLA (Defense Logistics Agency)	$27,965,103	0.2%	Rank history: not on the FY2021 list, #67 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
51	AML Global Limited Top agencies DLA (Defense Logistics Agency)	$27,039,543	0.2%	Rank history: #53 in FY2021, #56 in FY2022, #50 in FY2024 and #52 in FY2025; up 5 since FY2022.
52	Glasgow Prestwick Airport Limited Top agencies DLA (Defense Logistics Agency)	$26,917,961	0.2%	Rank history: #57 in FY2021, #52 in FY2022, #66 in FY2024 and not on the FY2025 list; unchanged since FY2022.
53	BRZ Investment & Consulting LLC Top agencies DLA (Defense Logistics Agency)	$25,310,712	0.2%	Rank history: not on the FY2021 list, #66 in FY2022, #32 in FY2024 and #27 in FY2025; up 13 since FY2022.
54	Freeman Holdings of Hawaii, LLC Top agencies DLA (Defense Logistics Agency)	$24,013,292	0.2%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2024 and #64 in FY2025; up 141 since FY2022.
55	Port City Air Top agencies DLA (Defense Logistics Agency)	$23,092,125	0.2%	Rank history: not on the FY2021 list, #46 in FY2022, #44 in FY2024 and not on the FY2025 list; down 9 since FY2022.
56	Linde LLC Through Messer LLC Top agencies NASA (National Aeronautics and Space Administration) DLA (Defense Logistics Agency)	$22,655,876	0.2%	Rank history: #63 in FY2021, #93 in FY2022 and not on the FY2024–FY2025 lists; up 37 since FY2022.
57	Colonial Group Inc. Through Colonial Oil Industries, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) DOJ (Department of Justice)	$20,180,809	0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2024 and not on the FY2025 list; up 45 since FY2022.
58	Pinnacle Petroleum, Inc. Top agencies DLA (Defense Logistics Agency)	$19,766,731	0.1%	Rank history: #47 in FY2021, #54 in FY2022, #53 in FY2024 and #47 in FY2025; down 4 since FY2022.
59	Jacksonville Jetport LLC Top agencies DLA (Defense Logistics Agency)	$19,579,369	0.1%	Rank history: #45 in FY2021, #58 in FY2022, #70 in FY2024 and #57 in FY2025; down 1 since FY2022.
60	Mobil Oil Mariana Islands, Inc. Top agencies DLA (Defense Logistics Agency)	$16,185,890	0.1%	Rank history: not on the FY2021 list, #62 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
61	Ryuseki Corporation Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$15,799,761	0.1%	Rank history: #59 in FY2021, #57 in FY2022, #64 in FY2024 and #55 in FY2025; down 4 since FY2022.
62	Freeman Holdings of Riverside, L.L.C. Top agencies DLA (Defense Logistics Agency)	$15,459,898	0.1%	Rank history: #50 in FY2021, #65 in FY2022, #52 in FY2024 and #58 in FY2025; up 3 since FY2022.
63	Associated Energy Group LLC Top agencies DLA (Defense Logistics Agency)	$15,135,742	0.1%	Rank history: #81 in FY2021, not on the FY2022 list, #54 in FY2024 and #39 in FY2025; up 68 since FY2022.
64	Falcon Fuels, Inc. Top agencies DLA (Defense Logistics Agency)	$14,321,877	0.1%	Rank history: #49 in FY2021, #70 in FY2022, #71 in FY2024 and not on the FY2025 list; up 6 since FY2022.
65	Lubwell Corporation Top agencies DLA (Defense Logistics Agency)	$14,019,993	0.1%	Rank history: not on the FY2021 list, #88 in FY2022 and not on the FY2024–FY2025 lists; up 23 since FY2022.
66	Campbell Oil Co Top agencies DLA (Defense Logistics Agency)	$13,993,349	0.1%	Rank history: #56 in FY2021, #59 in FY2022, #78 in FY2024 and #73 in FY2025; down 7 since FY2022.
67	Saltchuk Resources, Inc. 2 awardees, including Delta Western, LLC and Hawaii Petroleum, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$12,729,421	0.1%	Rank history: #60 in FY2021, #60 in FY2022 and not on the FY2024–FY2025 lists; down 7 since FY2022.
68	PTT Oil and Retail Business Public Company Limited Top agencies DLA (Defense Logistics Agency)	$11,963,010	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
69	Consiliari Partners Ltd Top agencies DLA (Defense Logistics Agency)	$11,076,622	0.1%	Rank history: not on the FY2021 list, #79 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
70	Black Bull Logistics SL. Top agencies DLA (Defense Logistics Agency)	$11,032,967	0.1%	Rank history: not on the FY2021 list, #82 in FY2022, #65 in FY2024 and #61 in FY2025; up 12 since FY2022.
71	US21 Inc Top agencies DLA (Defense Logistics Agency)	$10,988,901	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 298 since FY2022.
72	Petro 49 Inc. Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce) DOI (Department of the Interior)	$10,926,710	0.1%	Rank history: #90 in FY2021, not on the FY2022 list, not on the FY2024 list and #95 in FY2025; up 38 since FY2022.
73	Truman Arnold Companies 10 awardees Top agencies DLA (Defense Logistics Agency)	$10,512,461	0.1%	Rank history: #71 in FY2021, #63 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
74	Imperial Flying Service Inc. Top agencies DLA (Defense Logistics Agency)	$10,283,254	0.1%	Rank history: #72 in FY2021, #87 in FY2022, #92 in FY2024 and #74 in FY2025; up 13 since FY2022.
75	Mansfield Energy Corp. Through Mansfield Oil Company of Gainesville Inc. Top agencies DLA (Defense Logistics Agency)	$10,237,512	0.1%	Rank history: #65 in FY2021, #92 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
76	Irving Oil Terminals Inc. Top agencies DLA (Defense Logistics Agency)	$10,128,920	0.1%	Rank history: #96 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; down 3 since FY2022.
77	Solaris Energy Dmcc Top agencies DLA (Defense Logistics Agency)	$9,779,917	0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2024 and #60 in FY2025; new.
78	Selfinvest APS 2 awardees, including KPI Oceanconnect (Cyprus) Ltd and A / S Dan-Bunkering Ltd Top agencies DLA (Defense Logistics Agency)	$9,754,247	0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2024 and not on the FY2025 list; up 107 since FY2022.
79	Shoreside Petroleum, Inc. Top agencies DLA (Defense Logistics Agency)	$9,565,550	0.1%	Rank history: not on the FY2021 list, #97 in FY2022 and not on the FY2024–FY2025 lists; up 18 since FY2022.
80	Government of ABU Dhabi Through ABU Dhabi National Oil Company for Distribution Pjsc Top agencies DLA (Defense Logistics Agency) DOS (Department of State)	$9,474,556	0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2024 and not on the FY2025 list; new.
81	Merlin Petroleum Co Inc. Top agencies DLA (Defense Logistics Agency)	$8,930,868	0.1%	Rank history: not on the FY2021 list, #75 in FY2022, #74 in FY2024 and #79 in FY2025; down 6 since FY2022.
82	County of Horry Top agencies DLA (Defense Logistics Agency)	$8,920,360	0.1%	Rank history: not on the FY2021 list, #99 in FY2022 and not on the FY2024–FY2025 lists; up 17 since FY2022.
83	Vetjet Fuels LLC Top agencies DLA (Defense Logistics Agency)	$8,817,024	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	Eneos Sun-Energy Corporation Top agencies DLA (Defense Logistics Agency)	$8,495,558	0.1%	Rank history: not on the FY2021–FY2022 lists, #57 in FY2024 and #85 in FY2025; new.
85	CF Industries Holdings Inc. Through CF Industries Nitrogen LLC Top agencies DLA (Defense Logistics Agency)	$8,285,242	0.1%	Rank history: not on the FY2021 list, #53 in FY2022 and not on the FY2024–FY2025 lists; down 32 since FY2022.
86	Modern Aviation Inc. 2 awardees, including Air Wilmington, Inc. and Gateway Usa, LLC Top agencies DLA (Defense Logistics Agency)	$8,208,237	0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #86 in FY2024 and not on the FY2025 list; up 8 since FY2022.
87	Qatar Fuel (Woqod) Top agencies DLA (Defense Logistics Agency)	$8,158,369	0.1%	Rank history: #54 in FY2021, #64 in FY2022, #58 in FY2024 and #59 in FY2025; down 23 since FY2022.
88	Global Defense Logistics S.R.L. Top agencies DLA (Defense Logistics Agency)	$7,793,620	0.1%	Rank history: #79 in FY2021, #76 in FY2022, #93 in FY2024 and #91 in FY2025; down 12 since FY2022.
89	Hanwa Co.,Ltd. Top agencies DLA (Defense Logistics Agency) DOS (Department of State)	$7,708,966	0.1%	Rank history: #78 in FY2021, #83 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
90	Cockett Marine Oil US, Inc. Top agencies DLA (Defense Logistics Agency)	$7,593,240	0.1%	Rank history: not on the FY2021 list, #100 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
91	Hyundai Oilbank Co. Ltd. Through HD Hyundai Oilbank Co., Ltd Top agencies DLA (Defense Logistics Agency)	$7,577,342	0.1%	Rank history: #62 in FY2021, #47 in FY2022 and not on the FY2024–FY2025 lists; down 44 since FY2022.
92	Eastern Aviation Fuels, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$7,023,323	<0.1%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2024 and #65 in FY2025; up 75 since FY2022.
93	Ryzhka International LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Commerce (Department of Commerce)	$6,861,331	<0.1%	Rank history: #94 in FY2021, not on the FY2022 list, #87 in FY2024 and #70 in FY2025; up 18 since FY2022.
94	Mcclellan Jet Services, LLC Top agencies DLA (Defense Logistics Agency)	$6,724,729	<0.1%	Rank history: #48 in FY2021, #78 in FY2022, #75 in FY2024 and #48 in FY2025; down 16 since FY2022.
95	Clean Harbors Inc Through Safety-Kleen Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$6,714,888	<0.1%	Rank history: #91 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 33 since FY2022.
96	Rossetti S.P.A. Top agencies DLA (Defense Logistics Agency)	$6,672,824	<0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2024 and #88 in FY2025; up 77 since FY2022.
97	IES Downstream LLC Top agencies DLA (Defense Logistics Agency)	$6,476,755	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 106 since FY2022.
98	(Rc) 2 Pharma Connect L.L.C. Top agencies DLA (Defense Logistics Agency)	$6,410,742	<0.1%	Rank history: not on the FY2021–FY2022 lists, #68 in FY2024 and #81 in FY2025; new.
99	Airgas USA LLC 4 awardees Top agencies DLA (Defense Logistics Agency) NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$6,356,382	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
100	Ahntech Global, Inc. Through Ahntech Inc. Top agencies DLA (Defense Logistics Agency)	$6,318,350	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 194 since FY2022.

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100 of 863 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 91

Code	Net obligations	Largest contractor
9130 Liquid Propellants and Fuels, Petroleum Base	$10,679,034,039	Idemitsu Kosan Co.,Ltd.
9140 Fuel Oils	$2,008,478,649	BP P.L.C.
9135 Liquid Propellant Fuels and Oxidizers, Chemical Base	$234,913,979	Air Products and Chemicals, Inc.
9150 Oils and Greases: Cutting, Lubricating, and Hydraulic	$170,056,114	Science Applications International Corporation
9110 Fuels, Solid	$40,830,663	Usibelli Coal Mine, Inc.

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 $14.7 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 PSC 91 contractors in FY2023?

1. Idemitsu Kosan Co.,Ltd. ($1.73B), 2. BP P.L.C. ($1.46B), 3. Valero Energy Corporation ($1.22B), 4. Okinawa Idemitsu K.K. ($679M), 5. Petromax Refining Company LLC ($585M), 6. Vitol Inc. ($534M), 7. Phillips 66 Company ($479M), 8. Kingdom of Saudi Arabia ($440M), 9. Par Pacific Holdings, Inc. ($340M), 10. Placid Refining Company LLC ($280M).

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