On 28 February 2018 partner Ecopetrol announced an oil discovery in the Cosecha V-1 new field wildcat (NFW) located on the Cosecha Block of the Llanos Basin. Operated by Occidental de Colombia (Oxy) the well encountered some 4 m (13 ft) of oil-bearing sandstones within the Lower Carbonera reservoir target at a depth of some 2,600 m (8,528 ft) and tests resulted in a production rate of some 600 bo/d of 31Â° API gravity oil. The well was spudded in late July 2017 and reached a total depth (TD) of approximately 2,990 m (9,800 ft) by mid-August 2017. Oxy holds a 70% interest with Ecopetrol owning the remaining 30% in the Cosecha Block. Also in late February 2018 partner Ecopetrol announced an oil discovery in the REX NE 1 ST2 NFW located on the Cosecha Block. Background information Â 
Cosecha V-01 op. by Occidental (70%, Ecopetrol 30%) in Cosecha block, oil disc, encountered some 4m of oil-bearing sst. within the Lower Carbonera reservoir target, tested at 600 bo/d.