Block 7   Block 9   Block 10   Block 15

Capricorn has interests in four blocks in the Gulf of Mexico, two as Operator: Blocks 9 (50% WI) and 15 (50% WI), and two as non-Operator: Blocks 7 (30% WI) and 10 (15% WI).

Two wells were drilled on Block 10 in 2021:

  • The second commitment exploration well Sayulita-1EXP resulted in the second oil find on the licence 
  • The Saasken-2DEL appraisal well, an aggressive step-out on the first oil discovery on Block 10, Saasken, made in 2020

The JV is working to incorporate the well results into the evaluation plan for the Saasken discovery and Block 10 with the commercial potential of a cluster development being assessed. Drilling of the Yatzil prospect on Block 7, Capricorn’s final commitment exploration well in Mexico, is due to spud in H2 2022.  


Case Study

Turtle Conservation Support in Mexico

Total hatchlings released in 2021 (all species): 80,896 (2020: 93,193)

Kemp's Ridley turtles 2021 2020
Total nests 728 759
Nests protected 728 759
Eggs protected 71,344 74,493
Hatchlings released 67,367 69,493

In 2020, we carried out a Critical Habitat Assessment and a Biodiversity Impact Assessment for Block 9 offshore Mexico. This identified that the project is located within an area assessed to be Critical Habitat for the endangered Kemp’s Ridley sea turtle.

Although our activities were judged to have no impact on the species, we looked to achieve a ‘net gain’ by contributing to the efforts of a local turtle conservation group, Vida Milenaria, based in Tecolutla on the Gulf coast. We donated US$12,000 to fund the purchase of an all-terrain vehicle (ATV) and fuel for one year, to support its beach patrols to protect turtle nests and observe hatchings. During the 2021 season, the ATV covered around 6,000 km while patrolling the beaches.


The 2021 nesting season, which ran from March to September, was affected by hydrocarbons appearing on local beaches in April and Hurricane Grace hitting the region in August. Vida Milenaria helped to alert the authorities to the hydrocarbons’ appearance, which occurred during the nesting season, and was heavily involved in the subsequent clean-up efforts. Hurricane Grace made landfall in Tecolutla itself, causing severe damage. Again, the NGO supported the local community in the aftermath, helping to distribute provisions and coordinate donations to ensure they reached those most affected.

Vida Milenaria continued its important conservation work in the face of these difficulties, recording protected nests, protected eggs and hatchlings of the Kemp’s Ridley, green sea and hawksbill turtle species released to the sea. Overall numbers in 2021 were lower than 2020, due to the impact of these unexpected events, but the Kemp’s Ridley turtle fared better than other species, as its nesting season finished before the hurricane struck.

We continue to engage with Vida Milenaria and monitor its important work.

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