PFC ranks the most valuable energy companies, ... An icon in the shape of a lightning bolt. Impact Link. ... Previous rank: 4. Market cap: $211.6 bn.

Non-US companies continued to dominate the top spots in the second quarter ranking of the world's 50 largest energy firms, while natural gas-power merchant firms continued to fall from the ranks ...

Royal Dutch Shell Plc’s disclosure of its carbon emissions and risks to potential climate-protection laws lags behind competitors, according to Washington-based consultants PFC Energy. Shell was ...