In December 2017, local sources reported that Sinopec International Petroleum has completed its El Huemul 4301 outpost as an oil well at the approximated total depth of 3,200 m (10,500 ft) on the El Huemul-Koluel Kaike block after it flowed 65.4 bo/d from the Pozo D-129 Formation during testing. The El Huemul-Koluel Kaike block covers 603.8 sq km of onshore land in San Jorge Basin. The well was spudded in late-February 2017, with original target in the shallower Lower to Middle Albian Mina El Carmen Formation.
Argentina (San Jorge B.) El Huemul 4301 op. by SIPC (100.0%) in El Huemul-Koluel Kaike block