Exxon Mobil Corporation announced estimated second quarter 2016 earnings of $1.7 billion, or $0.41 per diluted share, compared with $4.2 billion a year earlier. The results reflect sharply lower commodity prices, weaker refining margins and continued strength in the Chemical segment.

Chevron Corporation (NYSE: CVX) reported a loss of $1.5 billion ($0.78 per share – diluted) for second quarter 2016, compared with earnings of $571 million ($0.30 per share – diluted) in the second quarter of 2015. Included in the quarter were impairments and other non-cash charges totaling $2.8 billion, partially offset by gains on asset sales of $420 million. Foreign currency effects increased earnings in the 2016 second quarter by $279 million, compared with a decrease of $251 million a year earlier. Sales and other operating revenues in second quarter 2016 were $28 billion, compared to $37 billion in the year-ago period.

Nearly 400,000 UK households left British Gas in the first six months of this year, as the company found its market share being taken by independent energy suppliers.

Statoil ASA (OSE:STL, NYSE:STO) and Petróleo Brasileiro S.A. - Petrobras (“Petrobras”) (BVMF: PETR4, NYSE:PBR) have agreed that Statoil will acquire Petrobras’ 66% operated interest of the BM-S-8 offshore licence in Brazil’s highly prolific Santos basin. The acquisition includes a substantial part of the Carcará oil discovery, one of the largest discoveries in the world in recent years.

Claudio Descalzi, Eni’s Chief Executive Officer,commented: "Eni has achieved significant results in the first half of 2016,despite the weak but slowly improving market environment. Hydrocarbon production beat expectations, offsetting the suspension of activity in Val d’Agri and the disruptions in Nigeria. Our main developments are proceeding on time and on budget,allowing us to confirm our expected production growth of more than 5% in 2017."

ConocoPhillips (NYSE: COP) reported a second-quarter 2016net loss of $1.1 billion,or ($0.86) per share, compared with a second-quarter 2015 net loss of $179 million, or ($0.15) per share. Excluding special items, second-quarter 2016 adjusted earnings were anet loss of $985 million, or ($0.79) per share, compared with second-quarter 2015 adjusted earnings of $81 million, or $0.07 per share. Special items for the current quarter were related to non-cashimpairments in the Lower 48, primarily in the Gulf of Mexico; pension settlement expense; deferred tax adjustments; and a gain onan asset sale.

"Total captured the benefit of this rebound, and adjusted net income rose to $2.2 billion in the second quarter 2016 (versus the first quarter), an increase of 33 percent compared to the first quarter,"

Mexican state oil company Petróleos Mexicanos on Thursday said it recorded an after-tax loss of $4.4 billion in the second quarter, as lower oil prices and output hit sales and hefty exchange losses boosted its financial costs.

"Looking through the cycle, our investment plans and portfolio actions are focused firmly on reshaping Shell into a world-class investment case through stronger, sustained and growing free cash flow per share".

TransCanada Corporation (TSX:TRP) (NYSE:TRP) (TransCanada) announced net income attributable to common shares for second quarter 2016 of $365 million or $0.52 per share compared to $429 million or $0.60 per share for the same period in 2015.

"Our portfolio continues to perform exceptionally well, and we've continued to significantly reduce our cost structure throughout the year," said Al Walker, Anadarko Chairman, President and CEO.

On a GAAP basis, net loss attributable to Baker Hughes for the second quarter was $911 million, or $2.08 per diluted share, compared to $981 million, or $2.22 per diluted share, in the first quarter of 2016. The second quarter includes charges related to goodwill impairment, asset impairments, restructuring, and inventory, almost entirely offset by the merger termination fee paid to the Company by Halliburton as a result of the termination of the Merger Agreement on April 30, 2016.

Suncor recorded a second quarter 2016 operating loss of $565 million ($0.36 per common share) and cash flow from operations of $916 million ($0.58 per common share), compared to operating earnings of $906 million ($0.63 per common share) and cash flow from operations of $2.155 billion ($1.49 per common share) in the prior year quarter. A net loss of $735 million ($0.46 per common share) was recorded in the second quarter of 2016, compared with net earnings of $729 million ($0.50 per common share) in the prior year quarter.

National Oilwell Varco, Inc. (NYSE:NOV) reported a second quarter 2016 net loss of $217 million, or $0.58 per share. Excluding other items, net loss for the quarter was $114 million, or $0.30 per share. Other items included $143 million in pre-tax charges ($103 million net of tax) primarily associated with severance, facility closure costs, and write-off of certain fixed assets.

Statoil ASA plans to cut its capital expenditure guidance for 2016 to $12 billion from $13 billion. That includes an exploration guidance reduction to $1.8 billion from $2 billion.