The World’s Biggest Oil Companies

Different criterions give you different rankings of the oil companies. Usually in this industry, the production and the reserve are the most useful factors to assess the companies. It is really difficult to tell the reserve a state-owned oil company have, usually which is regarded as top secret, sometimes even the oil company publicized its reserve but the figure was still not convincing1. In this following 2012 ranking of the world’s biggest is based on the combined volumes of oil and natural gas that these companies produce each day, which allows the comparison of private sector and state-owned oil companies.2, 3.


1. 2012 working interest production volumes calculated by Wood Mackenzie reflects oil plus the energy equivalent in natural gas2.

2. The unit of working interest production volumes is million barrels per day(mbpd).

3. The owners were listed in the parenthesis if a company is state-owned or a public company controlled by the government.

4. The Wikipedia pages of the companies have been hyperlinked.

Saudi Aramco(Saudi Arabia) 12.5 mbpd

Gazprom(Russia) 9.7 Mbps

National Iranian Oil Co.(Iran) 6.4 mbpd

ExxonMobil 5.3 mbpd

PetroChina 4.4 mbpd

BP 4.1 mbpd

Royal Dutch Shell 3.9 mbpd

Pemex(Mexico) 3.6 mbpd

Chevron 3.5 Mbps

Kuwait Petroleum Company 3.2 mbpd

Abu Dhabi National Oil Company(the United Arab Emirates) 2.9 mbpd

Sonatrach(Algeria) 2.7 mbpd

Total 2.7 mbpd

Petrobras(Brazil) 2.6 mbpd

Rosneft(Russia) 2.6 mbpd

Iraqi Oil Ministry(Iraq) 2.3 mbpd

Qatar Petroleum(Qatar) 2.3 mbpd

Lukoil 2.2 mbpd

Eni 2.2 mbpd

Statoil 2.1 mbpd

ConocoPhillips 2.0 mbpd

Petroleos de Venezuela(Venezuela) 1.9 mbpd

Sinopec 1.6 mbpd

Nigerian National Petroleum Company 1.4 mbpd

Petronas(Malaysia) 1.4 mbpd


1. WikiLeaks cables: Saudi Arabia cannot pump enough oil to keep a lid on prices.

2. The World’s 25 Biggest Oil Companies.

3. Petroleum Intelligence Weekly Ranks World’s Top 50 Oil Companies.


1000 Miles Drive(Part 1)

After I filled out the name of this post, I began to look for something related to the name and I found it is the same as the name of a piece of music by Jay Lumen. I am not going to talk about the song, actually pure music, but to tell the story that my friend and I drove 1000 miles from Missouri to New York.

In the evening of Jan. 12 2011, a friend of mine told me that another friend was going to relocate to New York by car. Then I discussed with him whether he could give me a drive. It was supposed that we should leave Rolla, MO after lunch on Jan. 14, actually we started the trip at 2:30 pm. I made a two-day trip plan. For the first day, I set three points, Terre Haute, IN, Indianapolis, IN, and Dayton, OH. I wished we could stop at the farthest point, Dayton, OH, where the National Museum of the USAF locates. If we could not reach Dayton on the first day, we had to stop at Harrisburg, PA. In the following picture, the blue line showed the route from Rolla, MO to New York City, NY.

Fig. 1 Route from Rolla, MO to New York City, NY

The first day’s drive was very smooth. My friend and I were surprised to see very few vehicles on the way from Rolla to St. Louis. Before the trip, both of us were concerning about the weather and road conditions after a snow. Maybe the same concern stuck others in their homes. When we reached the joint part between Missouri and Illinois, the traffic was some kind of bad. The fields covered by white snow out of the window made the drive very tedious. Sometimes, we listened to radio; sometimes we turned on the CD player to listen to some Chinese, Korean and Japanese songs. We stopped at the National Trail rest area for a while, where I read a friendly notice that riding on a train is much better than driving a car because of low carbon emission(That is not exactly the same expression, and my long-focus lense could not take a picture of the words).

Fig. 2 Icicles from Hills Besides I-44

Fig. 3 Gateway Arch, the Symbol of St. Louis

Fig. 4 Mac Arthur Bridge over Mississippi River Connects Two States

Fig. 5 A View of the MetroLink Passing through Illinois

Fig. 6 Snow-covered Hills inIllinois

Fig. 7 National Trail Rest Area on I-70 near Effingtham, IL