1Q13 Results - MZ Brazil

1Q13HRT GROUP COMPANIES - 1Q13 HIGHLIGHTSHRT OIL & GASSOLIMÕESIn January 2013, HRT O&G concluded the drill stem test of a cased hole in the HRT-10 well located in theTucumã prospect (1-HRT-192/02-AM), block SOL-T-192, approximately 30 km to the south of the JuruáField in the Solimões Basin.The tests, performed in two intervals, aimed to identify the presence of hydrocarbons in a faulted anticlinalstructure in a regional SW-NE oriented structural lineament sub parallel to the Juruá and Tefé gas trend.The drill stem test results for HRT-10, together with the gas findings in wells HRT-5 and HRT-9, confirm thegas trend potentials to the south and south-west in the SOL-T-191 and SOL-T-192 Blocks, and open a newexploratory play fairway for SOL-T-214, SOL-T-215 and SOL-T-216 Blocks, for future new wells to be drilled.The presence of a richer liquid bearing gas/condensate reinforces the geological model interpreted for thearea, consolidates the potential for gas in the region and supports the relevance of the gas monetizationproject, that is being conducted in partnership with TNK-Brasil and Petrobras.Figure 1 – Geographical location of well 1-HRT-10-AM| Page 5 |