The development stages:Appraisal drilling/2014-04.Block 109, which covers an area of 357,200ha, is located in Loreto department's Santiago and Huallaga basins. Operator Repsol owns a 70% stake in the block; Ecopetrol holds the remaining 30% stake. The block has moved onto the third exploration period. Repsol and Ecopetrol decided to terminate the contract after remaining more than 12 months in a situation of force majeure which impeded the execution of obligations established in the minimum work program.