The semisubmersible Maersk Developer drilled the Alom-1 well on block 9 to a vertical depth of 2,056 m (6,745 ft) subsurface, around 120 km (75 mi) northwest of Villahermosa.
Cairn, which was hoping to prove hydrocarbons in stacked Pleistocene targets, added that early analysis suggests the well encountered more than 500 m (1,640 ft) of high-quality water-bearing sands across multiple targets.
The company plans to use the results to refine its geological models in order to improve its understanding of Mexico’s offshore petroleum system.
The Maersk Developer will next drill the Bitol-1 well on the same block, probably during November.
Elsewhere, Cairn is partnering with Eni in the recently spudded Saasken-1 well on offshore block 10.