Talos Energy has started drilling the Zama-1 exploration well in Block 7 in the shallow water Sureste Basin, offshore Mexico.
The well is the first exploration well to be drilled on acreage awarded in Mexico's first international licensing round in 2015, says partner Premier Oil.
The well's principal target is the low risk Zama prospect with supportive direct hydrocarbon indicators in the Tertiary clastic reservoirs.
The Zama structure is estimated to have a P90-P10 gross unrisked resource range of 100-500 MMbbl, says Premier says. The well is expected to take up to 90 days to drill both the Zama prospect and the secondary target, Zama Deep, at a total cost to Premier of US$16 million.
The partners in Block 7 are Talos Energy (operator, 35%), Sierra Oil and Gas (40%) and Premier (25%).
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