After receiving two tenders and rejecting one for technical deficiencies, Mexico's national oil and gas company Petroleos Mexicanos (Pemex) selected a group led by Brazil's PetrĂ³leo Brasileiro SA (Petrobras) to develop the Fronterizo block in northeastern Mexico under a $265 million Multiple Services Contract (MSC). The 15 year contract includes gas field development, including the drilling of 100 wells; installation of infrastructure; and maintenance on the block in Nuevo Leon state.