40 companies in this supply chain, sorted by market share.
Chart Industries (NYSE: GTLS; Ball Ground, GA; ~$4B revenue post-Howden) is the world's dominant manufacturer of cryogenic equipment for LNG, including peak-shaving plant liquefiers, brazed aluminum heat exchangers (BAHX), cold boxes, storage tanks, and LNG vaporizers. Chart's Industrial & Commercial Energy (ICE) division is the primary vendor for utility LNG peak-shaving plant equipment in North America. Chart acquired Howden (Glasgow-based industrial compressor and fan manufacturer) in 2023 for $4.4B, adding compression technology to its cryogenic heat exchanger and storage portfolio — making Chart a near-complete LNG equipment systems integrator. Chart also produces the CAIRE/MVE biomedical cryogenic cylinders and acquired La Crosse Cooler and other brands. The La Crosse, WI cryogenic division manufactures vacuum-insulated storage vessels. Chart is the single most critical equipment supplier for US utility LNG peak-shaving — if a New England utility needs to expand or replace a peak-shaving liquefier, Chart is essentially the only qualified domestic source.
Supplies these inputs
LNG peak-shaving and import facilities
Replaceability
Substitutability 10% · 36 mo to replace
Business segments
- LNG / Cryogenic Energy (Dominant US Equipment Supplier)45% rev
- Industrial Gases & Air Separation Equipment25% rev
- Specialty Products (MVE Biomedical Cryogenic)15% rev
- Howden Rotating Equipment15% rev
World's largest manufacturer of industrial gas turbines; dominant in natural gas pipeline compression
Supplies these inputs
Natural gas compressor stations & engines
Replaceability
Substitutability 40% · 18 mo to replace
Business segments
- Pipeline Compression Gas Turbines65% rev
- Power Generation and Mechanical Drive25% rev
- Services and Parts10% rev
Arkema S.A. (Colombes, France; Euronext: AKE; ~€11B revenue 2023; specialty chemicals and advanced materials) is the world's largest producer of tert-butyl mercaptan (TBM), the primary natural gas odorant compound used across North America and much of Europe. Arkema's Lacq, France facility — located in the historic Lacq natural gas field in the French Pyrenees — is the dominant global TBM production site. Arkema also produces ethyl mercaptan (EM) and other thiol compounds. TBM production at Lacq leverages proximity to historic sulfur byproducts from the local natural gas field; Lacq was France's primary natural gas production region from the 1950s through the 1990s. Arkema also supplies mercaptans for industrial chemical synthesis (pharmaceuticals, rubber additives, lubricant additives) through its Thiochemicals business line. Arkema's broader portfolio includes high-performance polymers (PEBA, PVDF), adhesives (Bostik), and coating solutions (Coatex).
Supplies these inputs
Mercaptan gas odorant (tert-butyl mercaptan / THT)
Replaceability
Substitutability 20% · 6 mo to replace
Business segments
- Thiochemicals (Mercaptans & Thiols)15% rev
- Advanced Materials (High-Performance Polymers)35% rev
- Adhesive Solutions (Bostik)25% rev
- Coating & Acrylic Solutions25% rev
French specialty chemicals company; world's leading ethyl mercaptan producer. Beaumont, TX is the sole US production site for propane odorant ethyl mercaptan. In 2023, Arkema produced 11,000+ MT of mercaptans total, supplying gas odorants to 200+ distribution companies globally across Europe, North America, and Asia-Pacific. Arkema also produces mercaptan blends (SPOTLEAK, VIGILEAK) for natural gas odorization. Separate from mercaptans, Arkema operates specialty polymers, adhesives, and coating resin businesses. Also notable for the September 2017 Arkema Crosby TX peroxide plant fire — a different Arkema facility near Houston that caught fire during Hurricane Harvey when refrigeration failed, causing explosion and evacuation.
Supplies these inputs
Mercaptan gas odorant (tert-butyl mercaptan / THT)
Replaceability
Substitutability 20% · 12 mo to replace
Business segments
- Thiochemicals (Mercaptans + Gas Odorants)15% rev
- Specialty Polymers (PVDF, Fluoropolymers)25% rev
- Adhesives and Sealants (Bostik)25% rev
- Coating Resins20% rev
Caterpillar Inc.'s Energy & Transportation segment is the parent of Progress Rail (which owns EMD locomotive brand). Caterpillar's core business is construction and mining equipment (yellow machines). CAT's rail business (Progress Rail + EMD) is a smaller but strategically significant division. Caterpillar is also the world's largest manufacturer of diesel and natural gas engines — the same engine-manufacturing expertise that makes CAT famous for construction equipment also underpins EMD locomotive powertrains. Fortune 50 company with $67B revenue (2024).
Supplies these inputs
Natural gas compressor stations & engines
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.
Supplies these inputs
Interstate natural gas transmission pipelines · Underground natural gas storage (depleted fields & salt caverns)
Replaceability
Substitutability 20% · 96 mo to replace
Business segments
- Natural Gas Pipelines and Storage (Primary)65% rev
- LNG Terminals and Export15% rev
- CO2 Pipelines (Enhanced Oil Recovery)10% rev
- Products Pipelines10% rev
Major US petrochemical company (JV between Chevron and Phillips 66); produces ethyl mercaptan at Borger, TX and Tessenderlo, Belgium (Tessenderlo expanded 65% in 2017). Ethyl mercaptan is part of a broader organosulfur chemicals portfolio including methyl mercaptan, DMDS (dimethyl disulfide), and specialty sulfur chemicals. Applications: gas odorization, polymer modifiers, agricultural chemicals, pharmaceuticals, water purification, and lubricant additives. Tessenderlo capacity expansion noted by Hydrocarbon Processing (2017). Also the world's leading polyethylene producer (Cedar Bayou, TX cracker complex).
Supplies these inputs
Mercaptan gas odorant (tert-butyl mercaptan / THT)
Replaceability
Substitutability 20% · 12 mo to replace
Business segments
- Polyethylene (World Leader)55% rev
- Organosulfur Chemicals (Mercaptans)15% rev
- Alpha Olefins15% rev
- Styrenics15% rev
Leading smart meter and IoT solutions provider; major North American gas meter manufacturer
Supplies these inputs
Residential gas meters & pressure regulators
Replaceability
Substitutability 50% · 6 mo to replace
Business segments
- Smart Electric Meters & AMI Systems45% rev
- Gas Meters & Distribution Automation20% rev
- Smart Water Meters & AMI15% rev
- Network Communications (GenX/CENTRON RF)10% rev
Solar Turbines Incorporated (San Diego, CA; wholly owned subsidiary of Caterpillar Inc. since 1981) is the world's largest manufacturer of industrial gas turbine packages for pipeline compression applications. Solar's gas turbine lineup — Saturn 20, Centaur 40/50, Mercury 50, Taurus 60/70, Mars 100, Titan 130 — spans 1.2 MW to 22 MW output and forms the backbone of US natural gas transmission compression infrastructure. Solar claims approximately 15,000 gas turbine units installed globally; many large-diameter transmission pipelines (Transco, Tennessee Gas, El Paso) use Solar Turbines exclusively for compression stations, creating deep operational and spare-parts lock-in. Primary manufacturing at San Diego headquarters. Mars and Titan turbines are the workhorses of high-pressure interstate pipeline compression.
Supplies these inputs
Natural gas compressor stations & engines
Replaceability
Substitutability 15% · 24 mo to replace
Business segments
- Pipeline Compression Turbines55% rev
- Offshore & Oil-Gas Platform Power25% rev
- Distributed Power Generation15% rev
- Aftermarket Parts & Service5% rev
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.
Supplies these inputs
Interstate natural gas transmission pipelines
Replaceability
Substitutability 15% · 120 mo to replace
Business segments
- Transmission & Gulf of Mexico
- Northeast G&P
- West
Baker Hughes Company (Houston, TX; Nasdaq: BKR; ~$25B revenue; formed 2017 when GE Oil & Gas merged with Baker Hughes) is a major manufacturer of gas turbine-driven and centrifugal compressor systems for pipeline compression. Key pipeline compression products include: LM2500 and LM6000 aeroderivative gas turbines (derived from GE jet engine technology; LM2500 is also used for US Navy DDG-51 destroyer propulsion); Frame 5 and Frame 7 industrial gas turbines; and BCL/RB centrifugal compressor trains. Baker Hughes serves major pipeline operators globally including interstate US pipelines, LNG export facilities, and international transmission systems. The LM2500 aeroderivative compressor package is among the most widely deployed gas turbine compression units on US pipelines.
Supplies these inputs
Natural gas compressor stations & engines
Replaceability
Substitutability 20% · 30 mo to replace
Business segments
- Turbomachinery & Process Solutions30% rev
- Oilfield Services & Equipment35% rev
- Digital Solutions & Inspection20% rev
- Industrial & Energy Transition15% rev
Major gas turbine manufacturer for power and compression; 20.2 GW of orders in 2024
Supplies these inputs
Natural gas compressor stations & engines
Replaceability
Substitutability 40% · 18 mo to replace
Owns Elster Group; major global gas meter manufacturer including North American market
Supplies these inputs
Residential gas meters & pressure regulators
Replaceability
Substitutability 50% · 6 mo to replace
Siemens Energy AG (Munich, Germany; Xetra: ENR; spun off from Siemens AG in September 2020; ~€35B revenue) manufactures industrial gas turbines and centrifugal compressor systems for pipeline transmission applications. Key pipeline compression products: SGT-400 (13 MW), SGT-700 (32 MW), and SGT-800 (57 MW) industrial gas turbines coupled with STC-SH and STC-GH centrifugal compressor trains. Siemens Energy serves major European, Middle Eastern, and North American pipeline operators. Russian Gazprom historically used Siemens Energy gas turbines for its mainline compression on the Nordstream and Siberian pipeline systems — the 2022 Russia-Ukraine war and turbine sanctions created a supply crisis for Gazprom compression maintenance, demonstrating the geopolitical entanglement of pipeline compressor supply chains. Primary manufacturing at Ludwigshafen, Germany and Berlin. Siemens Gamesa (renewable energy) is majority-owned by Siemens Energy.
Supplies these inputs
Natural gas compressor stations & engines
Replaceability
Substitutability 20% · 28 mo to replace
Business segments
- Gas Services (Turbines & Compressors)30% rev
- Grid Technologies (Transformers, HVDC)20% rev
- Transformation of Industry15% rev
- Siemens Gamesa (Wind Energy)35% rev
Leading US PE pipe manufacturer for natural gas distribution; 10 plants, >1 billion lbs/year capacity
Supplies these inputs
Polyethylene (PE/HDPE) distribution pipe
Replaceability
Substitutability 60% · 6 mo to replace
Major HDPE/PE pipe manufacturer for gas distribution; subsidiary of Chevron Phillips Chemical
Supplies these inputs
Polyethylene (PE/HDPE) distribution pipe
Replaceability
Substitutability 60% · 6 mo to replace
NiSource Inc. (Westfield, IN; NYSE: NI) operates regulated gas distribution utilities across seven states through its Columbia Gas subsidiary brands: Columbia Gas of Ohio, Columbia Gas of Pennsylvania, Columbia Gas of Virginia, Columbia Gas of Kentucky, Columbia Gas of Maryland, and Bay State Gas (Massachusetts). NiSource's distribution utilities operate approximately 60 underground gas storage fields with a combined working gas capacity of approximately 630 Bcf — making NiSource one of the top three US underground storage operators by working gas capacity, though primarily as a regulated utility operator (not a merchant storage provider). NiSource's Ohio storage fields (Columbia Gas of Ohio) are critical to winter gas supply for the entire Great Lakes and Ohio Valley region. NiSource also controls the largest number of UGS fields of any single corporate entity in the US. In September 2018, Columbia Gas of Massachusetts caused fatal gas explosions in the Merrimack Valley (Lawrence, Andover, North Andover) due to over-pressurization of gas distribution mains, which ultimately led to the sale of Bay State Gas.
Supplies these inputs
Underground natural gas storage (depleted fields & salt caverns)
Replaceability
Substitutability 30% · 96 mo to replace
Business segments
- Gas Distribution (Columbia Gas Ohio & Pennsylvania)55% rev
- Underground Storage (Ohio Valley System)30% rev
- Gas Distribution (Mid-Atlantic & New England)15% rev
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.
Supplies these inputs
LNG peak-shaving and import facilities
Replaceability
Substitutability 20% · 24 mo to replace
Business segments
- Industrial Gases (Core Business)55% rev
- LNG Technology Licensing (APCI C3MR)5% rev
- Semiconductor & Electronics Gases15% rev
- Clean Hydrogen (Major Strategic Bet)15% rev
