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Mark McComiskey
Chairman at
PETROTAL CORP.
Net worth: 15 850 $ as of 2026-06-29
Profile
Mr. Mark A. McComiskey is a Non-Executive Chairman at PetroTal Corp., a Chief Executive Officer at AVAIO Digital Management LLC, a Founding Partner at Vanwall Capital LLC and a Partner at AVAIO Capital.
He is on the Board of Directors at SRUK Holdings Ltd. Mr. McComiskey was previously employed as an Independent Director by Sterling Resources Ltd., a Managing Partner by Prostar Capital (US) LLC, a Managing Partner by Prostar Capital Ltd.(United States), a Managing Director by First Reserve Management LP, a Manager by CHC Helicopter Corp., a Principal by Clayton Dubilier & Rice LLP, an Associate by Debevoise & Plimpton LLP, a Chairman by Mexico Pacific Ltd. LLC, and a Chairman by Torus Insurance Holdings Ltd. He also served on the board at One-Dyas UK Ltd., DHT Holdings, Inc., Ansaldo Energia SpA and Dresser-Rand Group, Inc. He received his undergraduate degree from Harvard College and a graduate degree from Harvard Law School.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
PETROTAL CORP. 0.01% | 2026-05-07 | 50,000 ( 0.01% ) | 15 850 $ | 2026-06-29 |
Mark McComiskey active positions
| Companies | Position | Start |
|---|---|---|
| PETROTAL CORP. | Chairman | 2019-11-03 |
AVAIO Capital
 AVAIO Capital Financial ConglomeratesFinance Provides investment services | Corporate Officer/Principal | - |
Vanwall Capital LLC | Corporate Officer/Principal | - |
SRUK Holdings Ltd.
 SRUK Holdings Ltd. Financial ConglomeratesFinance Functions as an investment holding company | Director/Board Member | - |
AVAIO Digital Partners
 AVAIO Digital Partners Engineering & ConstructionIndustrial Services Develops and operates data centers | Chief Executive Officer | - |
Former positions of Mark McComiskey
| Companies | Position | End |
|---|---|---|
Mexico Pacific Ltd. LLC
 Mexico Pacific Ltd. LLC Contract DrillingIndustrial Services Provides natural gas energy services | Chairman | 2019-11-06 |
Prostar Capital (US) LLC
 Prostar Capital (US) LLC Investment ManagersFinance Prostar Capital invests in middle market companies located across the globe with an enterprise value less than USD 1 billion. The firm targets companies operating in the fields of energy and infrastructure. It provides financing for buyout capital requirements and co-invests with limited partners. | Corporate Officer/Principal | 2015-10-31 |
| DHT HOLDINGS, INC. | Director/Board Member | 2013-12-31 |
CHC Helicopters Canada, Inc.
 CHC Helicopters Canada, Inc. AirlinesTransportation Provides transport, SAR, EMS, maintenance, repair, overhaul and training services | Corporate Officer/Principal | 2012-04-29 |
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Training of Mark McComiskey
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
76
1st degree connections
20
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 20 |
|---|---|
First Reserve Management LP
 First Reserve Management LP Investment ManagersFinance First Reserve invests in middle market energy companies located in North America and Europe. The firm targets companies operating in the fields of specialty services, engineered products, logistics & distribution, critical resources and value-added infrastructure. It provides financing for later stages and buyouts with an investment size ranging from USD 100 - 500 million. It also makes co-investments. | Finance |
CHC Helicopters Canada, Inc.
CHC Helicopters Canada, Inc. AirlinesTransportation Provides transport, SAR, EMS, maintenance, repair, overhaul and training services | Transportation |
Sterling Resources Ltd.
 Sterling Resources Ltd. Oil & Gas ProductionEnergy Minerals Explores and develops crude oil and natural gas | Energy Minerals |
Dresser-Rand Group, Inc.
 Dresser-Rand Group, Inc. Oilfield Services/EquipmentIndustrial Services Designs, manufactures and sells rotating equipment for oil, gas, petrochemical & process industries | Industrial Services |
Ansaldo Energia SpA
 Ansaldo Energia SpA Electric UtilitiesUtilities Generates electricity | Utilities |
Debevoise & Plimpton LLP
 Debevoise & Plimpton LLP Miscellaneous Commercial ServicesCommercial Services Provides legal services | Commercial Services |
One-Dyas UK Ltd.
 One-Dyas UK Ltd. Integrated OilEnergy Minerals Explores for oil and natural gas | Energy Minerals |
Clayton Dubilier & Rice LLP
 Clayton Dubilier & Rice LLP Investment ManagersFinance Functions as an alternative investment manager | Finance |
StarStone Insurance Holdings Ltd.
 StarStone Insurance Holdings Ltd. Insurance Brokers/ServicesFinance Provides insurance services | Finance |
DHT Holdings, Inc.
 DHT Holdings, Inc. Marine ShippingTransportation Operates crude oil tankers | Transportation |
Harvard Law School
 Harvard Law School Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Harvard College
 Harvard College Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Prostar Capital (US) LLC
Prostar Capital (US) LLC Investment ManagersFinance Prostar Capital invests in middle market companies located across the globe with an enterprise value less than USD 1 billion. The firm targets companies operating in the fields of energy and infrastructure. It provides financing for buyout capital requirements and co-invests with limited partners. | Finance |
SRUK Holdings Ltd.
SRUK Holdings Ltd. Financial ConglomeratesFinance Functions as an investment holding company | Finance |
Vanwall Capital LLC | |
PetroTal Corp.
 PetroTal Corp. Oil & Gas ProductionEnergy Minerals Engages in exploration of oil and natural gas | Energy Minerals |
Prostar Capital Ltd.(United States) | |
AVAIO Capital
AVAIO Capital Financial ConglomeratesFinance Provides investment services | Finance |
Mexico Pacific Ltd. LLC
Mexico Pacific Ltd. LLC Contract DrillingIndustrial Services Provides natural gas energy services | Industrial Services |
AVAIO Digital Partners
AVAIO Digital Partners Engineering & ConstructionIndustrial Services Develops and operates data centers | Industrial Services |
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