Finance Minister Luis Videgaray also said that Pemex would pay lower royalties than at present.

State oil monopoly expands its losses from the same period a year earlier on lower crude export prices and a stronger peso.

Opposition leaders unveil market-friendly overhaul, say it would lure billions to struggling sector.

Could slow the progress of major reform bills on President Enrique Pena Nieto's agenda.

Energy is on the agenda as Barack Obama heads to Mexico on Thursday, since U.S. has not implemented drilling agreement signed a year ago.