Primeline Energy Holdings Primeline Energy Holdings is an oil and gas exploration and development service provider. | ![]() LLOG Exploration Company LLOG Exploration Company is a deepwater exploration company operating primarily in the Gulf of Mexico. | ![]() Petro-king Oilfield Services Petro-King Oilfield Services (formerly known as Termbray Petro-king Oilfield Services) is an investment holding company that operates through its subsidiaries that provides oil and gas exploration and development services. | ![]() Black Sea Oil & Gas Black Sea Oil & Gas is a company, targeting exploration and development of conventional oil and gas resources. | ||
Founding Date | Founding Date 1993 | Founding Date 1977 | Founding Date 2006 | Founding Date 2002 | Founding Date 2015 |
Type | Type Private | Type Private | Type Public | Type Public | Type Subsidiary |
Tags | |||||
Locations | Locations London, GB HQ | Locations Covington, US HQ Houston, US | Locations Oklahoma City, US HQ Oklahoma City, US | Locations Shenzhen Shi, CN HQ Dubai, AE | Locations București, RO HQ Constanța, RO |
Employees | Employees 443% decrease | Employees 1741% decrease | Employees 27013% decrease | Employees 195 | Employees 1082% decrease |
Financial | |||||
Revenue (est.) | Revenue (est.) ¥372.3m (FY, 2019) | Revenue (est.) N/A | Revenue (est.) $156.4m (FY, 2025) | Revenue (est.) $267.9m (FY, 2025) | Revenue (est.) N/A |
Cost of goods | Cost of goods ¥97.1m (FY, 2019) | Cost of goods N/A | Cost of goods N/A | Cost of goods $47.5m (FY, 2025) | Cost of goods N/A |
Gross profit | Gross profit ¥275.2m (FY, 2019) | Gross profit N/A | Gross profit N/A | Gross profit $226.2m (FY, 2025) | Gross profit N/A |
Net income | Net income (¥301.6m) (FY, 2019) | Net income N/A | Net income $70.2m (FY, 2025) | Net income $22.9m (FY, 2025) | Net income N/A |

LLOG Exploration Company is a deepwater exploration company operating primarily in the Gulf of Mexico.
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Petro-King Oilfield Services (formerly known as Termbray Petro-king Oilfield Services) is an investment holding company that operates through its subsidiaries that provides oil and gas exploration and development services.
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Black Sea Oil & Gas is a company, targeting exploration and development of conventional oil and gas resources.
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