On 5 May 2020, partner Ecopetrol reported that its subsidiary Hocol, along with operator Lewis, scored a new gas discovery with Bullerengue-3 well, located in the SSJN-1 Block (Sinu San Jacinto Basin). The announcement was made after partners analysed data from a production test. The Bullerengue-3 shallower pool test was spudded by Hocol and Lewis in Q3 2019, reaching a final TD in mid-October 2019. The Merecumbe-1 NFW was also drilled in Q4 2019 on the SSJN-1 Block and is under evaluation.In the previous quarter, Hocol and Lewis drilled the Bullerengue SW-1 appraisal well in the same block. The well reached TD on 4 August 2019 and as of February 2020, is still under evaluation. No other results or details have been reported. Bullerengue Sur-1 was drilled in late 2016 and encountered around 25m of natural gas intervals. Two appraisals were drilled in 2017, with the first appraisal put onstream as a gas and condensate producer and the second was plugged and abandoned.In late 2018, Ecopetrol reported that a Declaration of Commerciality was made for the Bullerengue Field, discovered in 2015 with the Bullerengue-1 NFW, and produces gas from the Eocene Chengue Formation and very small amounts of oil. It was described in late 2018 by Ecopetrol as the "first commercially produced hydrocarbon field in the pre-Oligocene play in the San Jacinto Belt and in northern Colombia". Average daily gas production from January-August 2019 was 15.4MMscfg/d, and the field as of late 2018 had certified 3P reserves of 52.6 Bcfg.Operator Lewis Energy (50% WI) and partner Hocol (50%) were awarded the E&P contract for SSJN-1 in the Ronda Colombia 2008 bid round. 
Bullerengue 3 expl. (Lewis Energy 50 % op, Hocol 50%) in SSJN1 block, in Caribbean, reportedly gas find in prospect shallower than the 2015 Bullerengue-1 discovery now on stream, several intvs encountered, no details. 