BUENOS AIRES, July 24 (Reuters) - Argentina's giant VacaMuerta shale oil and gas field has 661 billion barrels of oiland 1,181 trillion cubic feet of natural gas resources,according to estimates by state-run energy firm YPF ina presentation seen by Reuters.
YPF operates in 3 million net acres in the formation, anarea with 316 billion barrels of shale oil and 353 trillionshale natural gas resources, according to the presentation.