According to local reports in early-December 2019, state company YPF has completed Al Sur del Lago 1 new-field wildcat (NFW) well as an oil and gas discovery from the Vaca Muerta Formation on its 100%-held Loma La Lata-Sierra Barrosa block in October 2019. The well flowed 408.8 bo/d and 303 Mscf/d with 208 b/c of water during production testing between the interval of 2,333 to 4,269 m (7,654 to 14,006 ft) in August and September 2019, after it was re-entered in early-August 2019. The well was previously suspended in late-May 2019 at the total depth (TD) of 4,315 m (14,157 ft) after it was initially spudded in April 2019 with planned total depth (PTD) of 4,297 m (14,098 ft).    Loma La Lata-Sierra Barrosa block covers 1,661 sq km of land in the Neuquen Embayment and Huincul Uplift parts of Neuquen Basin.  The block is situated directly next to YPF and Chevronâs Loma Campana block, where the best Vaca Muerta oil producer field of the same name is located with average producing rate of 10 Mbo/d in 2018.  Background Information  Loma La Lata field was the best producing conventional field in Argentina in 2018 with average production rate of 28.9 Mbo/d and 352 Mmscfg/d.
Al Sur del Lago 1 nfw. Loma La Lata-Sierra Barrosa block, tested 409 bo/d + 303 Mcfg/d + water from between 2333-4269m (Vaca Muerta). TD=4315m.