Offshore drilling platform at dusk in the Atlantic
Atlantic Margin

Frontier energy.
Disciplined capital.

Cullen Holding builds strategic positions in some of the world's most prospective hydrocarbon and mineral basins — partnering with supermajors and specialist operators to convert geology into long-term value.

4
Operating regions
30+
Years experience
5
Active basins
Long-term horizon
Our approach

We invest where geology
meets opportunity.

For three decades we have backed disciplined teams in frontier basins — from the Atlantic Margin to the South Atlantic shelf. Our portfolio is built around a small number of high-conviction positions, each held alongside operators we trust to execute.

We combine the patience of a private holding with the rigor of a public-company background. The result is durable exposure to the world's most prospective acreage — and to the discoveries that follow.

Where we operate

Four regions.
One strategic margin.

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Guyana — Stabroek & Orinduik offshore acreage
Stabroek & Orinduik

Guyana

Exposure to one of the decade's most prolific exploration provinces, including the Jethro and Joe discoveries on the Orinduik Block.

Namibia — Walvis Basin offshore acreage
Walvis Basin

Namibia

Three high-potential offshore blocks in the world's hottest emerging deepwater play.

South Africa — Block 3B/4B offshore acreage
Block 3B/4B

South Africa

Two offshore blocks including a fully funded, pending exploration well partnered with TotalEnergies.

Falkland Islands — PL001 · North Falkland Basin offshore acreage
PL001 · North Falkland Basin

Falkland Islands

Strategic acreage adjacent to the Sea Lion development, operated in partnership with Navitas Petroleum.