Platts is out with its annual ranking of the top 250 oil companies, which they rank based on asset worth, revenues, profits, and return on invested capital.
As expected ExxonMobil retained its position at the top of the list.
Otherwise, there were many changes compared to a year ago.
"Asia-Pacific's energy companies have improved their relative position in the Platts 2012 top 250 rankings, placing 12 companies in the top 50 in comparison with 9 in the 2011 listing," wrote Platts' Ross McCracken.
We pulled the top 15.
15 - TNK-BP
Country: Russia
Assets: $35 billion
Revenues: $53 billion
Profits: $1 billion
Proved reserves: 9 billion barrels of oil equivalent
Previous rank: 20
Comment: TNK-BP was just purchased by state-owned Rosneft, though Russian ministers insist TNK will remain privatized, according to the FT.
14 - Ecopetrol
Country: Colombia
Assets: $52 billion
Revenues: $37 billion
Profits: $9 billion
Proved reserves: 2 billion barrels of oil equivalent
Previous rank: 23
Comment: Ecopetrol is now the largest oil company in South America, replacing Petrobras.
13 - CNOOC
Country: China
Assets: $60 billion
Revenues: $38 billion
Profits: $11 billion
Proved reserves: 3.19 billion barrels of oil equivalent
Previous rank: 15
Comment: CNOOC will complete its largest foreign takeover when it buys out Canada's Nexen for $15.1 billion, according to BusinessWeek.
See the rest of the story at Business Insider
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