Bolivian gas reserves overestimated by US firm, complains YPFB
YPFB has complained that Bolivia's natural gas reserves were overestimated by reserves evaluators DeGolyer & MacNaughton (D&M) at the end of 2005, according toBolivian news reports. D&M's estimate of 49 Tcf has been dismissed by YPFB president Jorge Alvar