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Jan 2024: Petrobras has acquired a 45% stake in offshore Blocks 10 and 13 and 25% in block 11 Shell (40%) is the operator with ANP-STP holding 15%.


No significant news in 2023.


No significant news in 2022.


No significant news in 2021.


Mar 2020: São Tomé and Príncipe and Equatorial Guinea have agreed on the establishment of a Special Zone for Joint Exploration. Galp Energia currently operates Block 6 and Kosmos Energy Block 11 in the country. It has also shared another joint area with Nigeria since 2001.


Mar 2019: Total has signed an oil production sharing contract for joint development zone (JDZ) Blocks 7, 8 and 11. Total will initially hold 100% and will run seismic over the areas.


Jan 2019: BP and Kosmos have won exploration rights for offshore Blocks 10 and 13 in a restricted tender, over consortium of Total and Galp. Kosmos already has an interest in Blocks 5, 6, 11 and 12 acquired in 2015 and 2016. Water depth is up to 3,000m. Drilling is expected to start drilling in 2019.


No significant news in 2017.


Nov 2016: Kosmos will farm out 20% of its stake in offshore Blocks 5, 11, and 12 to Galp. A 3D seismic survey is expected to begin in Q1 2017. Galp already holds an operating interest in Block 6.

Apr 2016: Kosmos and Galp will run a seismic survey in offshore Blocks 6, 11 and 12 from January 2017. The country has 19 blocks in its exclusive economic zone as well as a joint exploration zone with Nigeria.

Apr 2016: Equator executed a PSC in February with the ANP for Block 12 and has farmed out 65% and operatorship in Blocks 5 and 12 to Kosmos. Block 5 is in water depths from 2,000 to 2,500m and is near the Equatorial Guinea shelf. Block 12 is in depths from 2,500 to 3,000m and is near the Gabon salt basin. Kosmos has stakes in 4 of 19 blocks not shared with Nigeria (EEZ).


Oct 2015: Galp Energia (operator, 45%) and Kosmos Energy (45%) have been awarded Block 6. The National Petroleum Agency (ANP) will have a 10% interest. Block 6 is located in the EEZ in water depths up to 2,500m and covers an area of 5,024 sq kms.

Oct 2015: ERHC Energy has reached an agreement with Kosmos Energy to transfer all its rights in EEZ Block 11 to Kosmos. ERHC retains 100% of the rights to EEZ Block 4.


Dec 2014: ERHC Energy (100%) has  signed an (MOU) with an IOC over Block 11 abutting Gabon in the Exclusive Economic Zone (EEZ). The work program during the first 4-year phase includes re-processing, an aeromagnetic survey and acquisition of 2,500 kms of 2D seismic data.

Jul 2014: ERHC Energy will invest US$100 mm after  signing a PSA with the National Petroleum Agency (ANP) for offshore Block 11 in the EEZ. ERHC also has 100% of Block 4. Other companies operating include Equator Exploration on Blocks 5 and 12, Sinoangol; a joint venture between Sinopec and Sonangol, on Block 2, and Oranto Petroleum on Block 3 with 15 blocks have yet to be awarded.

Feb 2014: The government has short-listed 4 companies to bid on 2 blocks in its exclusive economic zone (EEZ). It announced plans to open a licensing round for Blocks 1 and 6 in Dec 2013. Galp Energia and New World Oil and Gas will compete for the blocks. Blue Skies World Group is bidding on Block 1, while London Global Energy is bidding on Block 6. Sinoangol acquired Block 2 in 2013.

West Africa

São Tomé and Príncipe

E and P


São Tomé and Príncipe Datafiles

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