FACTBOX-Mexico energy reform debate

Aug 1 (Reuters) - Latest developments as Mexico's ruling conservatives court opposition lawmakers to approve an energy reform to allow more private investment in the state-controlled oil industry in hopes of bolstering falling output.

Compiled from Reuters stories, Mexican newspaper reports, television and radio.

** President Felipe Calderon said he welcomes all energy reform proposals that opposition parties might make, Reforma newspaper reported. A senior lawmaker from Calderon's party said they will study a proposal expected to be made soon by leftists.

** Aimed at shoring up flagging production and reserves in the world's No. 6 oil producer, Calderon proposes to let state monopoly Pemex sweeten oil field service contracts with private companies using performance-based bonuses. Left-wingers say that would violate a ban on private companies exploring for and producing oil in Mexico.

** Leftist leader Andres Manuel Lopez Obrador repeated threats of street protests if Calderon and a centrist party team up to push the government's proposal through Congress, El Financiero newspaper reported.

** Mexican and U.S. officials will meet soon to discuss a possible deal on cross-border oil fields in the Gulf of Mexico, El Universal newspaper reported, citing anonymous Mexican officials. (Reporting by Jason Lange in Mexico City; Editing by Marguerita Choy)