The new Seven Sisters: foreign national oil and gas giants

The old oil and gas giants the ruled the world have consolidated to four that have less and less clout against the new giants.

Saudi's Aramco
Russia’s Gazprom
CNPC of China
NIOC of Iran
Venezuela’s PDVSA
Brazil’s Petrobras
Malaysia's Petronas.

As the oil runs out they are where the power will come from until a green energy economy takes off.