GeoPark announced in April 2020, in its first quarter operational update, that it would plug and abandon the Huillin 1 prospect in the Isla Norte Block, after it encountered non-commercial oil. This commitment well reached a total depth of 2,875m and petrophysical logging was conducted. It targeted the Cretaceous Springhill and Jurassic Tobifera formations. GeoPark operates the block with a 60% working interest while partner ENAP has the remaining 40%. GeoPark disclosed in February 2020 that it would pursue a three well exploration drilling program in Q1 2020 with a focus on oil prospects. One of the wells included the Huillin 1 exploration well in the Isla Norte Block. The final exploration well in the campaign was planned to be the Koo 1 in the Campanario Block where GeoPark has a 50% working interest. 
Huillin X 1 nfw. (GeoPark 60% op, ENAP 40%), committed well in Isla Norte block, logged as non-commercial, to P&A. Targets Tobifera + Springhill Fm's. TD=2876m.