John Gellert
Chief Executive Officer at SEACOR MARINE HOLDINGS INC.
Net worth: 14 M $ as of 30/04/2024
Network origin in John Gellert first degree
| Entity | Entity type | Industry | |
|---|---|---|---|
Harvard College
83
| College/University | Other Consumer Services | 83 |
The National Ocean Industries Association
64
| Non-Profit Organization | 64 | |
| Public Company | Other Transportation | 17 | |
Offshore Marine Service Association
 Offshore Marine Service Association Miscellaneous Commercial ServicesCommercial Services Offshore Marine Service Association operate as an association of and spokesman for the offshore marine transportation service industry in the United States. The company is headquartered in New Orleans, LA.
3
| Non-Profit Organization | Miscellaneous Commercial Services | 3 |
SEACOR Marine LLC
 SEACOR Marine LLC Other TransportationTransportation SEACOR Marine LLC operates a fleet of offshore marine support vessels to oil and gas exploration and production industry. It offers anchor handling towing supply, platform supply, mini supply, fast support, standby safety, towing, and specialty vessel. The company was founded in 1989 and is headquartered in Houma, LA.
3
| Subsidiary | Other Transportation | 3 |
Seacor Capital (UK) Ltd.
 Seacor Capital (UK) Ltd. Financial ConglomeratesFinance Part of Seacor Marine Holdings, Inc., Seacor Capital (UK) Ltd. functions as an investment holding British company. The company is based in London, UK.
2
| Subsidiary | Financial Conglomerates | 2 |
Stirling Offshore Ltd.
 Stirling Offshore Ltd. Marine ShippingTransportation Part of Seacor Marine Holdings, Inc., Stirling Offshore Ltd. is a British company that provides sea and coastal freight water transportation services. The company is based in Dunbartonshire, UK.
1
| Subsidiary | Marine Shipping | 1 |
Dynamic Offshore Drilling Ltd.
 Dynamic Offshore Drilling Ltd. Contract DrillingIndustrial Services Part of SEACOR Holdings, Inc., Dynamic Offshore Drilling Ltd. is a Cypriot company that provides drilling services. The company is based in Limassol, Cyprus.
1
| Subsidiary | Contract Drilling | 1 |
International Support Vessel Owners' Association
1
| Non-Profit Organization | 1 |
Chart of Companies connected to the second degree
Multi-company connection
Companies connected to John Gellert via their personal network
| Company | Sector | Related people | Main position |
|---|---|---|---|
American Petroleum Institute, Inc.
 American Petroleum Institute, Inc. Wholesale DistributorsDistribution Services American Petroleum Institute (API) is the only national trade association that represents all aspects of America's oil and natural gas industry. Its more than 400 corporate members, from the largest major oil company to the smallest of independents, come from all segments of the industry. They are producers, refiners, suppliers, pipeline operators and marine transporters, as well as service and supply companies that support all segments of the industry. | Wholesale Distributors | Director/Board Member Corporate Officer/Principal Corporate Officer/Principal Director/Board Member Director/Board Member Director/Board Member Director/Board Member Corporate Officer/Principal Director/Board Member Corporate Officer/Principal Director/Board Member Corporate Officer/Principal Corporate Officer/Principal Director/Board Member | |
Society of Petroleum Engineers, Inc.
 Society of Petroleum Engineers, Inc. Engineering & ConstructionIndustrial Services Society of Petroleum Engineers, Inc. provides petroleum engineering services. The non-profit company is based in Allen, TX and has subsidiaries in United States, India and Canada. | Engineering & Construction | Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal | |
| International Association of Drilling Contractors | Director/Board Member Corporate Officer/Principal Corporate Officer/Principal Chairman Director/Board Member Director/Board Member Corporate Officer/Principal Corporate Officer/Principal | ||
| Texas A&M University | College/University | Undergraduate Degree Undergraduate Degree Masters Business Admin Corporate Officer/Principal Undergraduate Degree Undergraduate Degree Undergraduate Degree Undergraduate Degree | |
Spindletop Charities, Inc.
 Spindletop Charities, Inc. Investment Trusts/Mutual FundsMiscellaneous Spindletop Charities, Inc. promotes goodwill and fellowship within the oil and gas industry while benefiting children in need. It offers programs targeting child abuse prevention, pediatric medical research, drug and alcohol abuse prevention and rehabilitation, education and scholarships, school safety, therapeutic services and after-school programs, and family health. The company was founded by Loy D. Griffin in 1966 and is headquartered in Houston, TX. | Investment Trusts/Mutual Funds | Director/Board Member Director/Board Member Director/Board Member Director/Board Member Director/Board Member President | |
Offshore Energy Center
 Offshore Energy Center Other Consumer ServicesConsumer Services Offshore Energy Center is a non-profit organization which engages in the promotion and awareness of energy resources. It offers tours, membership services, training courses, rental services, gift shops, and educational services. The organization is headquartered in Houston, TX. | Other Consumer Services | Director/Board Member Director/Board Member Director/Board Member Director/Board Member Director/Board Member Director/Board Member | |
| Petroleum Equipment Suppliers Association | Corporate Officer/Principal Corporate Officer/Principal Director/Board Member Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal | ||
Independent Petroleum Association of America
 Independent Petroleum Association of America Industrial SpecialtiesProcess Industries The Independent Petroleum Association of America manufactures oil and natural gas. The non-profit company is based in Washington. Barry Russell has been the CEO of the American company since 1980. | Industrial Specialties | Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal | |
| Louisiana State University | College/University | Undergraduate Degree Undergraduate Degree Undergraduate Degree Undergraduate Degree Graduate Degree | |
| The University of Texas at Austin | College/University | Undergraduate Degree Doctorate Degree Masters Business Admin Undergraduate Degree Graduate Degree | |
| American Association of Drilling Engineers | Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal | ||
Transocean, Inc.
 Transocean, Inc. Contract DrillingIndustrial Services Transocean, Inc. provides offshore contract drilling services for oil and gas wells. It offers engineering and project management services. The firm specializes in deepwater and harsh environment drilling solutions. The company was founded in 1953 and is headquartered in Houston, TX. | Contract Drilling | President Director/Board Member Corporate Officer/Principal Sales & Marketing | |
Global Marine, Inc.
 Global Marine, Inc. Contract DrillingIndustrial Services Global Marine, Inc. provides offshore drilling and management services. The company is headquartered in Houston, TX. | Contract Drilling | Corporate Officer/Principal President Sales & Marketing President | |
| HESS CORPORATION | Integrated Oil | Corporate Officer/Principal Corporate Officer/Principal President Chief Tech/Sci/R&D Officer | |
| TRANSOCEAN LTD. | Contract Drilling | Chairman Chief Operating Officer Corporate Officer/Principal President | |
| SEACOR HOLDINGS INC. | Marine Shipping | Director/Board Member Director/Board Member Corporate Officer/Principal Corporate Officer/Principal | |
The National Petroleum Council
 The National Petroleum Council Miscellaneous Commercial ServicesCommercial Services The National Petroleum Council operates as a council for national petroleum. The private company is based in Washington. | Miscellaneous Commercial Services | Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal Corporate Officer/Principal | |
| Stanford Graduate School of Business | College/University | Masters Business Admin Masters Business Admin Masters Business Admin | |
| MURPHY OIL CORPORATION | Oil & Gas Production | Director/Board Member Corporate Officer/Principal President | |
American Bureau of Shipping
 American Bureau of Shipping Miscellaneous Commercial ServicesCommercial Services American Bureau of Shipping engages in the provision of classification services to marine, offshore, and gas industry. It offers government, container certification, rapid response damage assessment, type approval, and maritime training. The company was founded in 1862 and is headquartered in Spring, TX. | Miscellaneous Commercial Services | Corporate Officer/Principal Director/Board Member Corporate Officer/Principal | |
| KEY ENERGY SERVICES, INC. | Oilfield Services/Equipment | Director/Board Member Chief Executive Officer Chief Executive Officer | |
| SUPERIOR ENERGY SERVICES, INC. | Oilfield Services/Equipment | Corporate Officer/Principal Director/Board Member Director/Board Member | |
| The Wharton School of the University of Pennsylvania | College/University | Masters Business Admin Masters Business Admin Masters Business Admin | |
| HORNBECK OFFSHORE SERVICES, INC. | Oilfield Services/Equipment | Chief Executive Officer Director/Board Member Director/Board Member | |
| TIDEWATER INC. | Marine Shipping | Sales & Marketing Chief Executive Officer Chief Executive Officer | |
| DIAMOND OFFSHORE DRILLING, INC. | Contract Drilling | Corporate Officer/Principal Chief Executive Officer President | |
| ANADARKO PETROLEUM | Integrated Oil | Corporate Officer/Principal Chief Operating Officer Corporate Officer/Principal | |
| OIL STATES INTERNATIONAL, INC. | Oilfield Services/Equipment | Director/Board Member Director/Board Member Chief Operating Officer | |
| Dartmouth College | College/University | Undergraduate Degree Masters Business Admin Undergraduate Degree | |
Oil States Industries, Inc.
 Oil States Industries, Inc. Oil & Gas PipelinesIndustrial Services Oil States Industries, Inc. manufacturers deepwater production products and subsea pipelines. The firm operates in offshore oil and gas, land oil and gas, defense and general. Its products and services include floating production systems, subsea pipelines and structures, tabular connection systems, fixed structures, decommissioning, cranes, winches, repair, maintenance and refurb, fabrication services, structural test laboratory, acute welding, piper valves, proprietary products, custom molding operations, rotary selector valve, aerospace products, shock mounts, lockseals, clutches and breaks and plugs. The company was founded in 1942 and is headquartered in Arlington, TX. | Oil & Gas Pipelines | Director/Board Member Director/Board Member Chief Operating Officer | |
Baker Hughes Holdings LLC
 Baker Hughes Holdings LLC Electrical ProductsProducer Manufacturing Baker Hughes Holdings LLC supplies oilfield services, products, technology, and systems to the worldwide oil and natural gas industry. It provides products and services for other businesses including downstream chemicals, and process and pipeline services. The company is headquartered in Houston, TX. | Electrical Products | Comptroller/Controller/Auditor Corporate Officer/Principal Corporate Officer/Principal | |
| DNOW INC. | Wholesale Distributors | Chairman Director/Board Member Chief Executive Officer | |
Greater Houston Partnership Inc
 Greater Houston Partnership Inc Investment Trusts/Mutual FundsMiscellaneous Greater Houston Partnership operates as a place for community-minded business leaders who want to be involved in Houston''s positive growth and influence the direction. The company was founded in 1840 and is headquartered in Houston, TX. | Investment Trusts/Mutual Funds | Director/Board Member Director/Board Member Director/Board Member | |
Murphy Exploration & Production Company – USA
 Murphy Exploration & Production Company – USA Oil & Gas ProductionEnergy Minerals Murphy Exploration & Production Co. USA provides oil and gas exploration services. It offers production optimization, drilling evaluation, fluid and oilfield drilling software & consulting services. The company is headquartered in Houston, TX. | Oil & Gas Production | President Corporate Officer/Principal Corporate Officer/Principal | |
| Texas Christian University | College/University | Undergraduate Degree Undergraduate Degree | |
The Houston Museum of Natural Science
 The Houston Museum of Natural Science Other Consumer ServicesConsumer Services The Houston Museum of Natural Science operates a national museum. It consists of a planetarium, environmentally-controlled butterfly center, off-site observatory, advanced IMAX theatre and temporary and permanent exhibit halls. The museum features displays on subjects such as space science, energy, paleontology, chemistry, gems and minerals, ancient Egyptians, Native Americans and Texas wildlife. The company was founded in 1909 and is headquartered in Houston, TX. | Other Consumer Services | Director/Board Member Director/Board Member | |
| Petroleum Equipment & Services Association | Chairman Corporate Officer/Principal | ||
Particle Drilling Technologies, Inc.
 Particle Drilling Technologies, Inc. Oilfield Services/EquipmentIndustrial Services Particle Drilling Technologies, Inc. is an oilfield service and technology company that develops advanced drilling technology. It commercializes patented particle impact drilling system, which is designed to provide a radical increase in penetration rates for drilling oil and gas wells, particularly through deep hard and abrasive zones or other difficult to drill formations. The company is headquartered in Houston, TX. | Oilfield Services/Equipment | Director/Board Member President | |
GE Capital Equity, Inc.
 GE Capital Equity, Inc. Investment ManagersFinance GE Capital Equity, Inc. (GE Capital Equity) is a private equity division of GE Capital Americas is founded in 1993. The firm is headquartered in Norwalk, Connecticut. | Investment Managers | Private Equity Investor Private Equity Investor | |
| American Geosciences Institute | Director/Board Member Director/Board Member | ||
| COBALT INTERNATIONAL ENERGY, INC. | Oil & Gas Production | Director/Board Member Public Communications Contact | |
| MORGAN STANLEY | Investment Managers | Corporate Officer/Principal Private Equity Analyst | |
SESI LLC
 SESI LLC Oilfield Services/EquipmentIndustrial Services SESI LLC engages in provision of oil field and equipment services. The company is headquartered in Houston, TX. | Oilfield Services/Equipment | Director/Board Member Director/Board Member | |
| Harvard Law School | College/University | Graduate Degree Graduate Degree | |
| HERCULES OFFSHORE, INC. | Contract Drilling | Chief Executive Officer Chairman | |
Noble Drilling Services LLC
 Noble Drilling Services LLC Contract DrillingIndustrial Services Noble Drilling Services LLC operates as a drilling contractor. The company was founded on January 3, 1990 and is headquartered in Sugar Land, TX. | Contract Drilling | Public Communications Contact Chief Operating Officer |
Statistics
International
| United States | 48 |
| Cayman Islands | 2 |
| Switzerland | 2 |
| Bermuda | 2 |
Sectoral
| Industrial Services | 17 |
| Consumer Services | 11 |
| Energy Minerals | 7 |
| Distribution Services | 3 |
| Miscellaneous | 3 |
Operational
| Director/Board Member | 488 |
| Corporate Officer/Principal | 249 |
| President | 87 |
| Independent Dir/Board Member | 68 |
| Undergraduate Degree | 67 |
Most connected contacts
| Insiders | |
|---|---|
| Jeb Miller | 38 |
| Peter Kagan | 38 |
| Cornelius H. Dupré | 36 |
| Andrew R. Dale | 33 |
| Thomas S. Mawhinney | 32 |
| Gregory Hill | 26 |
| John Schiller | 25 |
| Eric O Brien | 18 |
| Jon Marshall | 18 |
| Glen Schwaber | 18 |
| Richard Alario | 17 |
| Douglas Pferdehirt | 17 |
| Annell Bay | 17 |
| Peter D. Kinnear | 17 |
| Peter Lee | 17 |
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