Corporate week in brief: Statoil discovers oil in the UK

Macro: Oil and gas shares down with Brent halting five week rally; Saudi Arabia and Russia deepen political and economic ties. Companies: Chevron announces first LNG from Wheatstone; Statoil Total and Shell invest in CCS; Pemex announces results of latest partnering round; LINN Energy unveils share buyback programme. M&A: Shell's disposal of Thai assets to KUFPEC falls through; PETRONAS marketing Alberta Deep Basin assets; Chevron sells down South African downstream business. Exploration: Statoil discovers oil in the UK; another Guyana oil discovery for ExxonMobil.