In 2012, oil global production estimates climbed to somewhere in the area of 75.72 million barrels per day, almost 3 percent higher than 2011. According to Oil and Gas Journal, the top producing countries of oil in 2012 included Russia with an average production of 10.45 million bpd, Saudi Arabia with 9.96 million bpd and the US with an average of 6.33 million bpd. But as far as the top producing companies, the story is a little different. Below are the top 10 oil aproducing companies of 2012, ranked by daily production. Saudi Arabian Oil Co. Saudi Arabian Oil Co. was the world's top producer in 2012, with a daily production of 12.5 million barrels per day (bpd) and more than $1 billion a day in revenues. The company supplies more than 10 percent of global oil demand with arefineries and marketing in other countries, such as Japan, China, South Korea and the U.S., as well as domestic distribution. Fifty-five percent of Saudi Arabian Oil Co's crude oil is exported to the Far East. Gazprom (MCX: GAZP) Russia's Gazprom produced 9.7 million bpd in 2012. The publicly-traded company profits more than $40 billion a year. It is engaged in the operation of natural gas pipelines and supply to European companies in addition to oil production and refining. Gazprom is also involved in energy generation and sales. Its expansion activities in recent years have involved purchasing other companies and creating an LLC for investors. National Iranian Oil Co. Last year, state-owned National Iranian Oil Co. produced 6.4 million bpd with an estimated 137 billionabarrels of in-place reserves, as well as large reserves of natural gas.National Iranian Oil Co. is active both domestically and as an exporter across the world. While Iran has had little exploration activity over the past 30 years, firms from many countries have signed development agreements with the company. ExxonMobila(NYSE:XOM) ExxonMobil produced 5.3 million bpd in 2012. The company manufactures and markets commodity petrochemicals, and has many divisions and affiliate organizations. It is also heavily involved in exploration for and production of crude oil and natural gas. The company and its divisions operate and market products all over the world. In 2012, it had $40 billion in annual profits and $400 billion in annual sales. Its market cap is $389.80 billion.