Top 100 Contractors in PSC 91: Fuels, Lubricants, Oils, Waxes, FY2025

Name: Top 100 Contractors in PSC 91: Fuels, Lubricants, Oils, Waxes, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 50% of FY2025 PSC 91 contract dollars

Contract obligations: $8,673,161,767 Net of deobligations, by contracts coded PSC 91 or a code under it
Contractors: 771 Parent companies with an obligation
Largest contractor: Valero Energy Corporation $1.17 billion, 11.9% 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	Valero Energy Corporation 2 awardees, including Valero Marketing and Supply Co Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$1,171,037,995	11.9%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023 and #3 in FY2024; up 2 since FY2024.
2	Phillips 66 Company 2 awardees Top agencies DLA (Defense Logistics Agency)	$637,397,000	6.5%	Rank history: #5 in FY2021, #8 in FY2022, #7 in FY2023 and #6 in FY2024; up 4 since FY2024.
3	S-Oil Corporation Top agencies DLA (Defense Logistics Agency)	$601,291,466	6.1%	Rank history: #13 in FY2021, not on the FY2022–FY2023 lists and #12 in FY2024; up 9 since FY2024.
4	Motor Oil (Hellas) Corinth Refineries S.A. 2 awardees, including Avinoil S.A. Top agencies DLA (Defense Logistics Agency)	$549,941,572	5.6%	Rank history: #10 in FY2021, #5 in FY2022, #12 in FY2023 and #5 in FY2024; up 1 since FY2024.
5	Marathon Petroleum Company LP Top agencies DLA (Defense Logistics Agency)	$542,113,932	5.5%	Rank history: not on the FY2021–FY2022 lists, #13 in FY2023 and #10 in FY2024; up 5 since FY2024.
6	Petromax Refining Company LLC Top agencies DLA (Defense Logistics Agency)	$415,805,395	4.2%	Rank history: #3 in FY2021, #7 in FY2022, #5 in FY2023 and #4 in FY2024; down 2 since FY2024.
7	Arctic Slope Regional Corporation 2 awardees, including Petro Star Inc. and Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$324,881,440	3.3%	Rank history: #14 in FY2021, #13 in FY2022, #11 in FY2023 and #8 in FY2024; up 1 since FY2024.
8	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)	$242,051,191	2.5%	Rank history: #8 in FY2021, #11 in FY2022, #9 in FY2023 and #9 in FY2024; up 1 since FY2024.
9	Chevron Corporation Through Chevron USA Inc. Top agencies DLA (Defense Logistics Agency)	$233,742,087	2.4%	Rank history: #25 in FY2021, #23 in FY2022, #16 in FY2023 and #20 in FY2024; up 11 since FY2024.
10	Ross & Associates of River Falls WI Ltd Through Vetjet Fuels LLC Top agencies DLA (Defense Logistics Agency)	$173,205,948	1.8%	Rank history: not on the FY2021–FY2023 lists and #29 in FY2024; up 19 since FY2024.
11	Qatex Limited Top agencies DLA (Defense Logistics Agency)	$166,305,373	1.7%	Rank history: not on the FY2021–FY2023 lists and #24 in FY2024; up 13 since FY2024.
12	United Capital Investments Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$160,806,772	1.6%	Rank history: #12 in FY2021, #14 in FY2022, #15 in FY2023 and #15 in FY2024; up 3 since FY2024.
13	Placid Refining Company LLC Top agencies DLA (Defense Logistics Agency)	$150,036,036	1.5%	Rank history: #17 in FY2021, #12 in FY2022, #10 in FY2023 and #13 in FY2024; unchanged since FY2024.
14	Okinawa Idemitsu K.K. Top agencies DLA (Defense Logistics Agency)	$145,130,816	1.5%	Rank history: not on the FY2021–FY2022 lists, #4 in FY2023 and #1 in FY2024; down 13 since FY2024.
15	SK Energy Co., Ltd. Top agencies DLA (Defense Logistics Agency)	$139,092,927	1.4%	Rank history: not on the FY2021–FY2024 lists; up 316 since FY2024.
16	Compania Espanola DE Petroleos SAU Through Moeve S.A. Top agencies DLA (Defense Logistics Agency)	$131,683,762	1.3%	Rank history: not on the FY2021–FY2023 lists and #18 in FY2024; up 2 since FY2024.
17	GS Caltex Corporation Top agencies DLA (Defense Logistics Agency)	$127,194,609	1.3%	Rank history: #58 in FY2021, #36 in FY2022, not on the FY2023 list and #16 in FY2024; down 1 since FY2024.
18	World Fuel Services Corp 5 awardees, including World Fuel Services (Singapore) PTE Ltd, World Fuel Services Europe, Ltd. and Tramp Oil Germany GMBH Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$124,548,714	1.3%	Rank history: #26 in FY2021, #25 in FY2022, #35 in FY2023 and #19 in FY2024; up 1 since FY2024.
19	Lazarus Energy Holdings LLC Top agencies DLA (Defense Logistics Agency)	$114,993,715	1.2%	Rank history: #18 in FY2021, #21 in FY2022, #22 in FY2023 and #22 in FY2024; up 3 since FY2024.
20	South National for Logistics Top agencies DLA (Defense Logistics Agency)	$114,612,399	1.2%	Rank history: not on the FY2021 list, #68 in FY2022, #43 in FY2023 and #25 in FY2024; up 5 since FY2024.
21	Air Products and Chemicals, Inc. Top agencies NASA (National Aeronautics and Space Administration) DLA (Defense Logistics Agency)	$102,559,768	1.0%	Rank history: #31 in FY2021, #34 in FY2022, #17 in FY2023 and #21 in FY2024; unchanged since FY2024.
22	Avfuel Corp Top agencies DLA (Defense Logistics Agency)	$102,255,217	1.0%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; up 38 since FY2024.
23	Sunoco, LLC Top agencies DLA (Defense Logistics Agency)	$96,636,667	1.0%	Rank history: not on the FY2021–FY2023 lists and #26 in FY2024; up 3 since FY2024.
24	Vitol Aviation Co Top agencies DLA (Defense Logistics Agency)	$91,060,897	0.9%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; down 10 since FY2024.
25	Alon USA LP Top agencies DLA (Defense Logistics Agency)	$86,904,412	0.9%	Rank history: not on the FY2021–FY2023 lists and #31 in FY2024; up 6 since FY2024.
26	Husky Marketing and Supply Company Top agencies DLA (Defense Logistics Agency)	$80,756,431	0.8%	Rank history: #74 in FY2021, not on the FY2022–FY2023 lists and #33 in FY2024; up 7 since FY2024.
27	BRZ Investment & Consulting LLC Top agencies DLA (Defense Logistics Agency) DOS (Department of State)	$70,844,323	0.7%	Rank history: not on the FY2021 list, #66 in FY2022, #53 in FY2023 and #32 in FY2024; up 5 since FY2024.
28	Carbon Asset Developer Associates LLC Top agencies DLA (Defense Logistics Agency)	$68,846,482	0.7%	Rank history: not on the FY2021–FY2023 lists and #34 in FY2024; up 6 since FY2024.
29	BP P.L.C. 2 awardees, including BP Products North America Inc. Top agencies DLA (Defense Logistics Agency)	$67,652,434	0.7%	Rank history: #1 in FY2021, #2 in FY2022, #2 in FY2023 and #2 in FY2024; down 27 since FY2024.
30	Kuwait Petroleum Corporation Top agencies DLA (Defense Logistics Agency)	$66,685,229	0.7%	Rank history: #15 in FY2021, #20 in FY2022, #31 in FY2023 and #23 in FY2024; down 7 since FY2024.
31	Calca Solutions, LLC Top agencies DLA (Defense Logistics Agency)	$64,392,510	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
32	Clipper Oil, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) DHS (Department of Homeland Security)	$59,005,498	0.6%	Rank history: #42 in FY2021, #48 in FY2022, #48 in FY2023 and #35 in FY2024; up 3 since FY2024.
33	Calumet Shreveport Fuels LLC 2 awardees, including Calumet Montana Refining, LLC Top agencies DLA (Defense Logistics Agency)	$57,597,540	0.6%	Rank history: not on the FY2021–FY2023 lists and #39 in FY2024; up 6 since FY2024.
34	Airgas USA LLC 2 awardees Top agencies DLA (Defense Logistics Agency) NASA (National Aeronautics and Space Administration)	$48,860,824	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
35	Repeat Consultants International LLC Top agencies DLA (Defense Logistics Agency)	$43,070,858	0.4%	Rank history: not on the FY2021–FY2022 lists, #32 in FY2023 and #30 in FY2024; down 5 since FY2024.
36	Sedra LLC Top agencies DLA (Defense Logistics Agency)	$38,004,430	0.4%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; up 25 since FY2024.
37	Signature Flight Support LLC 2 awardees Top agencies DLA (Defense Logistics Agency)	$36,724,324	0.4%	Rank history: not on the FY2021–FY2023 lists and #88 in FY2024; up 51 since FY2024.
38	Stonewin Capital LP Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$36,511,521	0.4%	Rank history: #30 in FY2021, #37 in FY2022, #40 in FY2023 and #45 in FY2024; up 7 since FY2024.
39	Associated Energy Group LLC Top agencies DLA (Defense Logistics Agency)	$36,081,538	0.4%	Rank history: #81 in FY2021, not on the FY2022 list, #63 in FY2023 and #54 in FY2024; up 15 since FY2024.
40	Petroleum Traders Corp Top agencies DLA (Defense Logistics Agency)	$30,710,966	0.3%	Rank history: #34 in FY2021, #35 in FY2022, #42 in FY2023 and #41 in FY2024; up 1 since FY2024.
41	Foster Fuels Inc. Top agencies DLA (Defense Logistics Agency)	$26,048,833	0.3%	Rank history: not on the FY2021–FY2024 lists; up 129 since FY2024.
42	Crowley Government Services, Inc. Top agencies DLA (Defense Logistics Agency)	$25,047,501	0.3%	Rank history: #41 in FY2021 and not on the FY2022–FY2024 lists; up 72 since FY2024.
43	Epic Aviation, LLC Top agencies DLA (Defense Logistics Agency)	$24,993,722	0.3%	Rank history: not on the FY2021–FY2023 lists and #56 in FY2024; up 13 since FY2024.
44	Messer North America Inc. Through Messer LLC Top agencies NASA (National Aeronautics and Space Administration) DLA (Defense Logistics Agency)	$24,896,256	0.3%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; up 47 since FY2024.
45	Masar Al-Tamkeen for Oil and Diesel Services Ltd. Co. Top agencies DLA (Defense Logistics Agency)	$24,347,230	0.2%	Rank history: not on the FY2021–FY2024 lists; up 115 since FY2024.
46	Cosmo Oil Marketing Co., Ltd. Top agencies DLA (Defense Logistics Agency)	$23,365,075	0.2%	Rank history: #19 in FY2021, #50 in FY2022, #45 in FY2023 and #47 in FY2024; up 1 since FY2024.
47	Pinnacle Petroleum, Inc. Top agencies DLA (Defense Logistics Agency)	$23,261,207	0.2%	Rank history: #47 in FY2021, #54 in FY2022, #58 in FY2023 and #53 in FY2024; up 6 since FY2024.
48	Mcclellan Jet Services, LLC Top agencies DLA (Defense Logistics Agency)	$20,508,857	0.2%	Rank history: #48 in FY2021, #78 in FY2022, #94 in FY2023 and #75 in FY2024; up 27 since FY2024.
49	Stonewin International, LLC Top agencies DLA (Defense Logistics Agency)	$20,499,450	0.2%	Rank history: not on the FY2021–FY2024 lists; up 66 since FY2024.
50	Usibelli Coal Mine, Inc. Top agencies Army (Department of the Army)	$19,546,763	0.2%	Rank history: #36 in FY2021, #45 in FY2022, #47 in FY2023 and #63 in FY2024; up 13 since FY2024.
51	Glasgow Prestwick Airport Limited Top agencies DLA (Defense Logistics Agency)	$19,064,880	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
52	AML Global Limited Top agencies DLA (Defense Logistics Agency)	$18,933,716	0.2%	Rank history: #53 in FY2021, #56 in FY2022, #51 in FY2023 and #50 in FY2024; down 2 since FY2024.
53	City of Bangor Top agencies DLA (Defense Logistics Agency)	$18,582,913	0.2%	Rank history: not on the FY2021–FY2024 lists; up 149 since FY2024.
54	HD Hyundai Oilbank Co. Ltd Top agencies DLA (Defense Logistics Agency)	$17,956,140	0.2%	Rank history: not on the FY2021–FY2023 lists and #48 in FY2024; down 6 since FY2024.
55	Ryuseki Corporation Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$17,601,526	0.2%	Rank history: #59 in FY2021, #57 in FY2022, #61 in FY2023 and #64 in FY2024; up 9 since FY2024.
56	Delta Western, LLC Top agencies DLA (Defense Logistics Agency)	$17,259,033	0.2%	Rank history: not on the FY2021–FY2023 lists and #77 in FY2024; up 21 since FY2024.
57	Jacksonville Jetport LLC Top agencies DLA (Defense Logistics Agency)	$16,926,094	0.2%	Rank history: #45 in FY2021, #58 in FY2022, #59 in FY2023 and #70 in FY2024; up 13 since FY2024.
58	Freeman Holdings of Riverside, L.L.C. Top agencies DLA (Defense Logistics Agency)	$16,517,603	0.2%	Rank history: #50 in FY2021, #65 in FY2022, #62 in FY2023 and #52 in FY2024; down 6 since FY2024.
59	Qatar Fuel (Woqod) Top agencies DLA (Defense Logistics Agency)	$16,144,724	0.2%	Rank history: #54 in FY2021, #64 in FY2022, #87 in FY2023 and #58 in FY2024; down 1 since FY2024.
60	Solaris Energy Dmcc Top agencies DLA (Defense Logistics Agency)	$15,844,496	0.2%	Rank history: not on the FY2021–FY2022 lists, #77 in FY2023 and #51 in FY2024; down 9 since FY2024.
61	Black Bull Logistics SL. Top agencies DLA (Defense Logistics Agency)	$15,539,380	0.2%	Rank history: not on the FY2021 list, #82 in FY2022, #70 in FY2023 and #65 in FY2024; up 4 since FY2024.
62	Exxon Mobil Corp Through Exxonmobil Marine Limited Top agencies Navy (Department of the Navy)	$15,520,300	0.2%	Rank history: #40 in FY2021, #29 in FY2022, #18 in FY2023 and #17 in FY2024; down 45 since FY2024.
63	Stonewin LLC Top agencies DLA (Defense Logistics Agency)	$15,056,895	0.2%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; up 10 since FY2024.
64	Freeman Holdings of Hawaii, LLC Top agencies DLA (Defense Logistics Agency)	$14,847,505	0.2%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2023 and #67 in FY2024; up 3 since FY2024.
65	Eastern Aviation Fuels, Inc. Top agencies DLA (Defense Logistics Agency)	$14,258,689	0.1%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023 and #76 in FY2024; up 11 since FY2024.
66	Alterna Energy Pte. Ltd. Top agencies DLA (Defense Logistics Agency)	$12,049,794	0.1%	Rank history: not on the FY2021–FY2023 lists and #89 in FY2024; up 23 since FY2024.
67	Mercuria Asia Group Holdings (PTE.) Ltd. Through Minerva Bunkering Pte. Ltd. Top agencies DLA (Defense Logistics Agency)	$11,902,805	0.1%	Rank history: not on the FY2021–FY2024 lists; up 39 since FY2024.
68	Lubwell Corporation Top agencies DLA (Defense Logistics Agency)	$11,542,937	0.1%	Rank history: not on the FY2021–FY2024 lists; up 53 since FY2024.
69	Merrimac Petroleum, Inc. Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) Army (Department of the Army)	$11,326,612	0.1%	Rank history: #99 in FY2021 and not on the FY2022–FY2024 lists; up 35 since FY2024.
70	Ryzhka International LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) DOI (Department of the Interior)	$11,240,448	0.1%	Rank history: #94 in FY2021, not on the FY2022 list, #93 in FY2023 and #87 in FY2024; up 17 since FY2024.
71	SAK Industries LLC Top agencies DLA (Defense Logistics Agency)	$10,966,787	0.1%	Rank history: not on the FY2021–FY2024 lists; up 53 since FY2024.
72	The San Antonio Refinery LLC Top agencies DLA (Defense Logistics Agency)	$10,565,118	0.1%	Rank history: not on the FY2021–FY2024 lists; up 70 since FY2024.
73	Campbell Oil Co Top agencies DLA (Defense Logistics Agency)	$10,369,789	0.1%	Rank history: #56 in FY2021, #59 in FY2022, #66 in FY2023 and #78 in FY2024; up 5 since FY2024.
74	Imperial Flying Service Inc. Top agencies DLA (Defense Logistics Agency)	$9,960,348	0.1%	Rank history: #72 in FY2021, #87 in FY2022, #74 in FY2023 and #92 in FY2024; up 18 since FY2024.
75	Ahntech Inc Top agencies DLA (Defense Logistics Agency)	$9,516,542	0.1%	Rank history: not on the FY2021–FY2024 lists; up 35 since FY2024.
76	Colonial Energy Inc Through Colonial Oil Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$9,443,220	0.1%	Rank history: not on the FY2021–FY2024 lists; up 37 since FY2024.
77	County of Horry Top agencies DLA (Defense Logistics Agency)	$9,310,714	0.1%	Rank history: not on the FY2021–FY2024 lists; up 43 since FY2024.
78	Ip&E Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$9,203,957	0.1%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 19 since FY2024.
79	Merlin Petroleum Co Inc. Top agencies DLA (Defense Logistics Agency)	$9,142,512	0.1%	Rank history: not on the FY2021 list, #75 in FY2022, #81 in FY2023 and #74 in FY2024; down 5 since FY2024.
80	S.C.A. - Shipping Consultants Associated Ltd. Top agencies DLA (Defense Logistics Agency)	$8,476,582	0.1%	Rank history: #66 in FY2021, #61 in FY2022, not on the FY2023 list and #99 in FY2024; up 19 since FY2024.
81	(Rc) 2 Pharma Connect L.L.C. Top agencies DLA (Defense Logistics Agency)	$8,424,625	0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023 and #68 in FY2024; down 13 since FY2024.
82	Alliance Aviation Management Ltd Top agencies DLA (Defense Logistics Agency)	$8,159,223	0.1%	Rank history: #75 in FY2021, #91 in FY2022, not on the FY2023 list and #95 in FY2024; up 13 since FY2024.
83	Freeman Holdings of Arizona, L.l.c Top agencies DLA (Defense Logistics Agency)	$8,138,706	0.1%	Rank history: #95 in FY2021 and not on the FY2022–FY2024 lists; up 20 since FY2024.
84	Tayrona Investments LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$7,882,243	0.1%	Rank history: not on the FY2021–FY2024 lists; up 25 since FY2024.
85	Eneos Sun-Energy Corporation Through Eneos Corporation Top agencies USAF (Department of the Air Force)	$7,555,179	0.1%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2023 and #57 in FY2024; down 28 since FY2024.
86	Freeman Holdings of Louisiana LLC Top agencies DLA (Defense Logistics Agency)	$7,370,375	0.1%	Rank history: not on the FY2021–FY2024 lists; up 19 since FY2024.
87	Brad Hall & Associates Inc Top agencies DLA (Defense Logistics Agency)	$7,329,998	0.1%	Rank history: #27 in FY2021, #31 in FY2022, #44 in FY2023 and #62 in FY2024; down 25 since FY2024.
88	Rossetti S.P.A. Top agencies DLA (Defense Logistics Agency)	$7,147,641	0.1%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and #94 in FY2024; up 6 since FY2024.
89	Deployed Global Solutions, LLC Top agencies DLA (Defense Logistics Agency)	$6,973,409	0.1%	Rank history: not on the FY2021–FY2024 lists; up 210 since FY2024.
90	The Bahrain Petroleum Company BSC (CLOSED) Top agencies DLA (Defense Logistics Agency)	$6,765,497	0.1%	Rank history: #7 in FY2021, #10 in FY2022, #37 in FY2023 and #82 in FY2024; down 8 since FY2024.
91	Global Defense Logistics S.R.L. Top agencies DLA (Defense Logistics Agency)	$6,490,825	0.1%	Rank history: #79 in FY2021, #76 in FY2022, #88 in FY2023 and #93 in FY2024; up 2 since FY2024.
92	AAR Aircraft Services, Inc. Top agencies DLA (Defense Logistics Agency)	$6,471,153	0.1%	Rank history: not on the FY2021–FY2024 lists; up 44 since FY2024.
93	PTT Oil and Retail Business Public Company Limited Top agencies DLA (Defense Logistics Agency)	$6,136,872	0.1%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2024; up 7 since FY2024.
94	Dgci Corporation Top agencies DLA (Defense Logistics Agency)	$6,075,571	0.1%	Rank history: not on the FY2021–FY2024 lists; up 61 since FY2024.
95	Petro 49 Inc. Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$6,072,121	0.1%	Rank history: #90 in FY2021, not on the FY2022 list, #72 in FY2023 and not on the FY2024 list; up 23 since FY2024.
96	Shoreside Petroleum Inc. Top agencies DLA (Defense Logistics Agency)	$5,981,971	0.1%	Rank history: not on the FY2021–FY2024 lists; up 57 since FY2024.
97	UNO Honduras S.a. DE C.V. Top agencies DLA (Defense Logistics Agency)	$5,610,559	0.1%	Rank history: #84 in FY2021, #89 in FY2022 and not on the FY2023–FY2024 lists; up 15 since FY2024.
98	Us21 Inc. Top agencies DLA (Defense Logistics Agency)	$5,561,603	0.1%	Rank history: #68 in FY2021, #90 in FY2022 and not on the FY2023–FY2024 lists; up 43 since FY2024.
99	Minerva Bunkering (USA) LLC Top agencies DLA (Defense Logistics Agency)	$5,524,975	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	Monjasa Inc. Top agencies DLA (Defense Logistics Agency)	$5,324,197	0.1%	Rank history: not on the FY2021–FY2023 lists and #84 in FY2024; down 16 since FY2024.

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100 of 771 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	$6,356,280,494	Valero Energy Corporation
9140 Fuel Oils	$1,874,811,215	S-Oil Corporation
9150 Oils and Greases: Cutting, Lubricating, and Hydraulic	$159,715,822	Arctic Slope Regional Corporation
9110 Fuels, Solid	$23,527,466	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 $9.81 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 FY2025?

1. Valero Energy Corporation ($1.17B), 2. Phillips 66 Company ($637M), 3. S-Oil Corporation ($601M), 4. Motor Oil (Hellas) Corinth Refineries S.A. ($550M), 5. Marathon Petroleum Company LP ($542M), 6. Petromax Refining Company LLC ($416M), 7. Arctic Slope Regional Corporation ($325M), 8. PAR Pacific Holdings Inc. ($242M), 9. Chevron Corporation ($234M), 10. Ross & Associates of River Falls WI Ltd ($173M).

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