Oil major ExxonMobil and its partners are set to start drilling operations at the Sapote-1 well on the Canje Block, offshore Guyana.

Said to be an independent multi-layer prospect, the Sapote-1 well represents the third of three exploration wells planned to be drilled by the partners this year.

The Sapote-1 well is located approximately 60km north of the Campanian and Santonian Maka Central-1 stacked pay discovery.

Drilling at the Sapote-1 well will be carried out using the Stena DrillMAX drillship, which previously worked on the Stabroek Block. It aimed to assess several Upper Cretaceous targets.

According to Westmount Energy, which indirectly owns a stake in the Canje Block, the Sapote-1 well could be largest prospect drilled to date on the block.

With the drilling work anticipated to take 60 days at the well, results are expected in late October 2021, the firm noted.

ExxonMobil operates the Canje Block through its subsidiary Esso Exploration & Production Guyana with a 35% stake.

Other partners in the block include TotalEnergies E&P Guyana (35%), JHI Associates (17.5%) and Mid-Atlantic Oil & Gas (12.5%). Westmount Energy holds an indirect stake in the block through its 7.7% interest in the issued capital of JHI Associates.

Drilling on the first and second wells in the Canje block were completed earlier this year. However, the partners failed to find commercial hydrocarbons at these wells.

In June 2021, Eco Atlantic agreed to acquire a 10% stake in JHI. The firm has subscribed for five million new common shares in JHI at $2 each.