The company has added 2.7 billion barrels of oil equivalent to its gross resource estimate for these fields.

BG Group’s new aggregate estimate of economically recoverable gross resources for these fields amounts to 10.8 billion barrels of oil equivalent, representing a 34% increase to the 8.1 billion barrels of oil equivalent mid-point of the company’s previous indicative resource range.

As a result of the upgrade, the company’s aggregate best estimate of its economically recoverable net resources on Tupi, Iracema and Guara now stands at 2.8 billion barrels of oil equivalent.