Home heating oil

Air Products and Chemicals (NYSE: APD; Allentown, PA; ~$12B revenue) licenses the APCI (Air Products and Chemicals, Inc.) natural gas liquefaction process technology used in many small- and mid-scale LNG liquefaction trains worldwide, including utility peak-shaving plants. The APCI propane pre-cooled mixed refrigerant (C3MR) process dominates large baseload LNG export trains globally (used in >90% of world's baseload LNG capacity), but Air Products also licenses adapted cycles for smaller peak-shaving applications. Air Products competes with Linde Engineering for small-scale liquefaction process technology licensing. Air Products is also the world's largest industrial gas producer, supplying nitrogen and other gases used in LNG facility construction and purging.

One of the largest energy infrastructure companies in North America; holds natural gas and NGL storage assets including salt cavern storage. Kinder Morgan's Products Pipelines segment operates refined products and NGL pipelines with associated storage. Also a leading operator of liquefied natural gas (LNG) facilities and CO2 pipelines for enhanced oil recovery. Less dominant in LPG salt cavern storage specifically vs. Enterprise/Energy Transfer/ONEOK, but holds meaningful storage capacity.

Danish specialty chemicals and catalysts company (Nasdaq Copenhagen: TOP, hybrid listing January 2025); ~40% of all global ULSD is produced using Topsoe's TK-series hydrotreating catalysts. Founded in the 1940s by Haldor Topsoe; family-controlled. Three critical catalyst lines: (1) Haber-Bosch ammonia synthesis catalysts (KM1) for fertilizer production; (2) Hydrotreating catalysts (CoMo/NiMo) for ULSD and gasoline desulfurization; (3) Solid oxide electrolysis cells (SOEC) for green hydrogen production — 500 MW SOEC facility operational in Herning, Denmark; 1 GW plant planned in Virginia, USA. Bayport, Texas catalyst plant in addition to Frederikssund Denmark primary site.

Linde plc (NYSE/FWB: LIN; HQ Dublin, Ireland; operational HQ Guildford UK; ~$32B revenue 2023) is the world's largest industrial gas company. Linde owns and operates one of the two largest liquid oxygen cryogenic tanker fleets globally — thousands of vacuum-insulated trailers delivering LOX to hospitals, steel mills, chemical plants, and semiconductor fabs in 80+ countries. Linde does not primarily manufacture its own tankers (purchases from Chart Industries and other OEMs) but specifies custom vacuum-insulated designs for its fleet. Linde's medical oxygen business (hospital LOX supply) is the dominant fleet use case. Linde also supplies liquid oxygen rocket propellant to aerospace customers including NASA and commercial launch operators.

Canadian pipeline company (NYSE/TSX: ENB, HQ Calgary); operates the world's longest and most complex crude oil and liquids pipeline system, including the Enbridge Mainline network transporting ~3 million barrels per day of Canadian crude to US refineries. Enbridge's Line 5 through Michigan (under the Straits of Mackinac, Lake Michigan/Huron, challenged by Michigan government) carries ~540,000 bpd of crude and NGL critical for Ohio, Pennsylvania, and Ontario refineries. A Line 5 shutdown would severely curtail crude supply to Great Lakes region refineries. Enbridge acquired Dominion Energy Midstream (gas pipelines) and a 25% interest in the Mainline — one company carries ~65% of Canadian crude exports to the US.

French industrial gas company (Euronext: AI); operates nearly 2,000 miles of industrial gas pipelines along the U.S. Gulf Coast supplying oxygen, nitrogen, and hydrogen. La Porte, Texas hydrogen facility serves Gulf Coast refiners. $50M investment announced October 2025 to expand Gulf Coast hydrogen distribution after new refinery supply deals. Also building new U.S. ultra-pure gas facility (including neon for semiconductors). Partner in HyVelocity Hub (DOE-funded $1.2B Gulf Coast hydrogen hub, launched November 2024).

Formerly Renewable Energy Group (REG), acquired by Chevron Corporation (NYSE: CVX) in June 2022 for $3.15B — making Chevron the largest U.S. biodiesel producer through one acquisition. REG was the largest independent U.S. biodiesel company with 11 production facilities and ~90 million gallon/year capacity when acquired. Now operates as Chevron Renewable Energy Group, the renewable fuels arm of one of the world's largest oil companies. Produces FAME biodiesel from soybean oil, canola, and used cooking oil (UCO). Geismar, Louisiana facility is one of North America's largest biodiesel plants. The same oil major that produces and refines petroleum also now makes the renewable biodiesel blended into that petroleum — vertically integrated from fossil to renewable.

Williams Companies, Inc. (Tulsa, Oklahoma; NYSE: WMB) is the operator of the Transco pipeline — the largest US natural gas pipeline by volume, running approximately 1,800 miles from the Gulf Coast through Virginia and the Carolinas to New York City. Williams handles approximately 30% of all US natural gas consumed daily across its network. The Transco system alone carries roughly 15% of total US natural gas consumption and supplies approximately 30% of East Coast natural gas demand. Williams also operates Gulfstream Natural Gas System (Florida) and Northwest Pipeline (Pacific Northwest). Total operated pipeline: ~33,000 miles. 2023 revenues approximately $10.2 billion.

Albemarle Corporation (NYSE: ALB) is the world's largest lithium producer (for EV batteries) AND a top-3 FCC catalyst maker via its Ketjen subsidiary (acquired from Akzo Nobel 2021). Ketjen produces FCC and hydroprocessing catalysts at Bayport, Texas and Amsterdam, Netherlands. Albemarle announced a strategic review of the Ketjen catalysts business (potential divestiture) given focus on lithium for EV transition — the same company supplying lithium to Ford, BMW, and Tesla also makes the zeolite catalysts refining jet fuel and gasoline. Counter-cyclical hedge: as EV demand rises (lithium up) and gasoline demand falls (FCC catalysts down), Albemarle's business mix naturally rebalances.

Agricultural commodity giant (NYSE: ADM, HQ Chicago); one of the largest U.S. biodiesel producers from soybean oil and corn oil. Operates biodiesel plants at Velva ND, Columbus NE, and other locations integrated with soy processing operations — ADM crushes soybeans for oil (which becomes biodiesel) and meal (which becomes animal feed). The same company that makes high-fructose corn syrup, soy protein isolate, and livestock feed ingredients also produces a significant share of U.S. biodiesel. ADM biodiesel benefits from vertical integration with agricultural commodity trading and soy crushing.

Shell's catalyst and technology licensing division (The Hague, Netherlands); includes Criterion Catalysts & Technologies (formed 1988 combining Shell, American Cyanamid, and Shell International Chemical catalyst businesses). Offers CENTERA GT® hydrotreating catalyst platform and DC-2638 CoMo catalyst for ULSD. Simultaneously an oil major refiner (competing with customers it sells catalysts to) and one of the world's largest hydroprocessing catalyst suppliers. Shell Catalysts licenses technology to competing refineries while operating its own downstream refining operations — the oil industry's version of a restaurant supply company that also runs restaurants.

French refining technology and catalyst company, spun off from IFP Energies nouvelles (French government public research institute) in 2001. Largest catalyst plant at Salindres, Gard region, Occitania (~400 employees, €25M recent investment with €2.8M French government subsidy via France Relance). Produces 75,000+ tons of catalysts and adsorbents annually including hydrotreating, reforming, and renewable fuel catalysts. Co-develops technology with TotalEnergies (Impulse® catalyst series). Unique French government connection: IFPEN is publicly funded; Axens commercializes French public research in refining chemistry.

One of the world's largest oil and gas companies; major US and global sulfur producer as a Claus Process refinery byproduct. Key US refining locations: Baytown, Texas (largest US refinery complex); Baton Rouge, Louisiana; Beaumont, Texas. Also major international refiner (Antwerp, Rotterdam). USGS listed as one of leading US recovered sulfur producers. Also holds 25% of Tengizchevroil (TCO) in Kazakhstan, making it indirectly a significant producer of high-sulfur crude and associated sulfur. Acquired Pioneer Natural Resources 2024 (~$60B), largest US oil deal since Exxon-Mobil merger.

Finnish state-controlled oil refiner (NASDAQ HEL: NESTE); world's largest producer of renewable diesel (HVO — Hydrotreated Vegetable Oil) and one of the largest FAME biodiesel producers. Primary renewable diesel facilities at Porvoo (Finland), Rotterdam (Netherlands), Singapore. Neste produces both FAME biodiesel AND HVO renewable diesel — HVO is chemically different from FAME but serves similar renewable fuel markets. Neste also produces petroleum-derived fuels and aviation fuel. Finland's state oil company became the world leader in renewable diesel by pivoting from fossil fuel production — same company, different product line, 20-year technology development.

TC Energy Corporation (Calgary, Alberta; TSX/NYSE: TRP) is one of the largest operators of underground natural gas storage in the northeastern US through its Columbia Gas Transmission subsidiary. Columbia Gas Transmission operates approximately 30 underground storage fields in West Virginia, Ohio, Pennsylvania, Virginia, and Kentucky — the largest concentration of UGS fields by count in the US. These fields have combined working gas capacity of approximately 600 Bcf, serving the Northeast and Mid-Atlantic markets. TC Energy's storage is primarily in depleted gas reservoir fields in the Appalachian Basin. The Columbia storage system plays a critical role in winter peak supply for the most densely populated region of the US. In addition, TC Energy's Canadian Mainline pipeline system includes storage fields in Ontario (Dawn Hub — the most liquid natural gas trading hub in Canada).

World's largest oil company by revenue and production. Also the Middle East's largest sulfur exporter: Aramco exports ~3.5M MT of elemental sulfur/year via its trading subsidiary Aramco Trading Company. Sulfur is a mandatory Claus Process byproduct at Aramco's Ras Tanura, Yanbu, and Jizan refineries and gas plants — recovered to comply with environmental regulations and sold globally as a commodity. Saudi Arabia accounts for ~8% of global sulfur production and a larger share of global sulfur exports. Middle East overall (including Aramco) = ~30% of global sulfur supply.

Hydroprocessing catalyst producer in Lake Charles, Louisiana. Originally a joint venture between W.R. Grace and Chevron. Grace acquired Chevron's stake in November 2025, making ART fully Grace-owned. Produces distillate hydrotreating, residue hydrocracking, and renewable fuel catalysts (ENDEAVOR™ series for renewable diesel and sustainable aviation fuel). U.S.-focused market position; part of Grace Catalysts Technologies portfolio.

EQT Corporation (Pittsburgh, PA; NYSE: EQT) is the largest US natural gas producer by volume and operates significant underground gas storage assets in West Virginia and Pennsylvania. EQT's storage is integrated with its Appalachian Basin production — depleted reservoir fields that serve as both production infrastructure and seasonal storage. EQT's storage fields in West Virginia (including storage along the Equitrans Midstream system, now an EQT subsidiary after the 2024 Equitrans acquisition for ~$5.5 billion) give EQT direct control over Appalachian gathering, compression, and storage. Equitrans Midstream operated the Mountain Valley Pipeline (MVP, ~303 miles from West Virginia to Virginia, completed June 2024) and associated gathering systems that include storage infrastructure. EQT's storage capacity is approximately 45 Bcf of working gas across its storage fields.