≡ Menu

Top 10 Oil Companies Based On Oil Reserves

We showed about the top 10 oil companies in the world in the previous topic. Those companies are based on several criteria.

Today, I would like to show the interesting information about top 10 oil companies based on oil and gas reserves. You will see that all of them are national oil companies

Saudi Arabian Oil Company


We’re not just Saudi Arabia’s national oil company – we’re also a fully integrated, global petroleum enterprise and a world leader in exploration, production, refining, distribution, shipping and marketing.

We manage the world’s largest proven crude oil reserves of 260.1 billion barrels and the world’s fourth-largest gas reserves, with 279 trillion cubic feet. With headquarters in Dhahran, Saudi Arabia, we also have offices in North America, Europe and the Far East.

National Iranian Oil Company


NIOC at a Glance Since 1951, National Iranian Oil Company (NIOC) has been directing and making policies for exploration, drilling, production, research and development, refining, distribution and export of oil, gas, petroleum products.

NIOC, with a vast amount of oil and gas resources, is one of the world’s largest oil companies. At the present time, it is estimated that the company holds 137 billion barrels of liquid hydrocarbons and 29 trillion cubic meters of natural gas.

Qatar General Petroleum Corporation


Qatar Petroleum (QP), a state-owned corporation established in 1974, is responsible for all phases of the oil and gas industry in Qatar. The principal activities of Qatar Petroleum and its subsidiaries and joint ventures cover exploration, drilling and production operations, transport, storage, marketing and sale of crude oil, natural gas liquids, liquefied natural gas, gas-to-liquids, refined products, petrochemicals and fertilizers, and helicopter and financial services.

Qatar Petroleum’s strategy of conducting hydrocarbon exploration and new projects is through Exploration and Production Sharing Agreements (EPSA) and Development and Production Sharing Agreements (DPSA) concluded with major international oil and gas companies.

Iraq National Oil Company


The Iraqi Oil Ministry declared its oil exports for the previous September 2011 which was (63.1) million barrels and their achieved outcome which is about (6,619) billions dollars.

Petroleos de Venezuela.S.A.


Petróleos de Venezuela S.A., the state-owned corporation of the Bolivarian Republic of Venezuela, is responsible for the efficient, profitable, and dependable exploration, production, refining, transport and commerce of hydrocarbons. This company is deeply committed to environmental protection and its main objectives are to foster the harmonic development of the country, to guarantee sovereignty of national resources, to increase endogenous development and to serve and benefit the Venezuelan people, who correspond to their share of the country’s national wealth.

Abu Dhabi National Oil Company


Abu Dhabi National Oil Company (ADNOC) was established in 1971, to operate in all areas of the oil and gas industry and since then has steadily broadened its activity establishing companies and subsidiaries and creating an integrated oil and gas industry in Abu Dhabi. Today, the company manages and oversees oil production of more than 2.7 million barrels a day which ranks it among the top ten oil and gas companies in the world.

Kuwait Petroleum Corporation


In 1980 Kuwait Petroleum Corporation (KPC) was established as the state owned asset and all other oil companies in Kuwait, including KNPC, became KPC subsidiaries. One year later after the establishment of KPC, the oil sector in Kuwait was restructured on sectorial basis. KNPC became responsible for the oil refining and gas liquefaction industry in addition to the marketing of petroleum products in Kuwait through a chain of filling stations, which reached its peak between 2005/2007 with 119 operating filling stations. In collaboration with KPC the company embarked on studies and plans to modernize refining industry in Kuwait with a multi billion dollar projects to revamp Mina Al-Ahmadi and Mina Abdullah Refineries.

Nigerian National Petroleum Corp.


In addition to its exploration activities, the Corporation was given powers and operational interests in refining, petrochemicals and products transportation as well as marketing. Between 1978 and 1989, NNPC constructed refineries in Warri, Kaduna and Port Harcourt and took over the 35,000-barrel Shell Refinery established in Port Harcourt in 1965.

In 1988, the NNPC was commercialised into 12 strategic business units, covering the entire spectrum of oil industry operations: exploration and production, gas development, refining, distribution, petrochemicals, engineering, and commercial investments.

National Oil Company (Libya)


The National Oil Corporation (NOC) was established on 12 November 1970 , under Law No: 24/1970, replacing the general Libyan Petroleum Corporation which established under Law No. 13 of 1968 to assume the responsibility of the oil sector operations . It was later reorganized under decision No :10/1979 by the General Secretariat of the General People’s Congress, to undertake the realization of the objectives of the development plan in the areas of petroleum , supporting the national economy through increasing , developing and exploiting the oil reserves and operating and investing in those reserves , to realize optimum returns. In carrying out its activities, NOC may enter into participation agreements with other companies and corporations carrying out similar activities.




Sonatrach is the largest oil and gas company in Algeria and Africa. The company operates in exploration, production, pipeline transportation and marketing of hydrocarbons and by products.

As part of a diversification strategy, Sonatrach stepped up investments in power generation, new and renewable energies, water desalination, and mining exploration and exploitation. The international strategy of the company includes operations in several parts of the world namely: in Africa (Mali, Niger, Libya, Egypt), in Europe (Spain, Italy, Portugal, Great Britain), in Latin America (Peru) and in the USA.

With a turnover nearing $56,1 billion in 2010, Sonatrach is ranked first company in Africa and 12th in the world. It is also 4th world LNG exporter, 3rd world LPG exporter and 5th World Natural gas exporter.


Oilfield Resume – Discover The Secret of Writing Perfect Resume for Oilfield Jobs
DrillingFormulas.Com Stuck Pipe Book. Click Here !!!
{ 2 comments… add one }
  • Bakhit Ibrahim Bakhit November 27, 2011, 8:58 am

    Dear Sir
    Am from Sudan .Graduates1994 in 3 Years Diploma in Water well drilling technology

    Name: Bakhiet Ibrahim Bakhiet Ibrahim
    Address: Khartoum – Sudan Av International Drilling company
    Nationality: Sudanese
    Home phone: +249911912525
    Mobile: +249912282772
    Date of birth: 01 January 1968
    Place of birth: Alhassahiesa .Gazeera State
    Marital status: Married
    E-mail Address: astrihna@maktoob.com
    Sudan University of Science and Technology – Collage of Water science And Technology 1994
    Three Years Diploma in Water well Drilling Technology
    * Training in Rig design and DTH Design in KLR industries Hyderabad India From 24Aprill — 30 April 2010

    * March 2006 up now 2010 Av inter national for water drilling company Sudan
    *July 2005 —February 2006 Arab Centre for Engineering Studies Dubai UAE
    *1997 —- June 2005 African Muslims Agency Drilling Department Sudan
    *1996 —- 1997 the Islamic Development Water and Drilling Company
    *1994 —-1996The National Company for Drilling Khartoum and Kordofan Sector Sudan
    *1994 —-1996
    Site drilling Engineer in Superficial Deposit and Hard rock and well development and well Pumping test, and rehabilitation of water yards,
    *Drilling in Cretaceous Formations (intercalation of soft and medium soft Formations) in Loss of circulation zone using additives and local materials for solving loss problem (22) water well in feet average( 850) ft for each Bore Hole (18,700 ft) using Rotary drilling Rigs
    * Drilling in Compacted Formations (intercalation between Hard and medium Hard Formations) (6) water well in feet average (350) ft for each Bore Hole (2,100 ft) using Percussion drilling Rigs
    * Drilling in Hard Formations (Basement Complex Rocks) (58) water well in feet average (240) ft for each Bore Hole (13,920 ft) using DTH drilling Rigs
    *1996 —- 1997
    Site drilling Engineer and Head Drilling Unit using Rotary drilling Rigs and Percussion Rigs @ DTH Rigs (Head Fishing Tool and Job Unit)
    *Making Water well Development and pumping test to 25 Bore holes
    * Fishing Job to (9) wells (7) of them are succeed using local material for manufacturing fishing tools
    * Drilling of (13) water well in feet average (1100) ft for each Bore Hole (14,300 ft) using Rotary drilling Rigs
    * 1998
    Delegated Engineer to execute water project For Drought and Desertification’s Darfur Region Western Sudan (Compound Rigs)
    Drilling of (4) water well in feet average (900) ft for each Bore Hole (3,600 ft) using Rotary drilling Rigs
    Executing Thrust Combat Project, Supervision of drilling programs and making well design and Bills and making Rig Design In Northern Kordofan Ghobiesh Provence tell 2003 Middle of Sudan
    *Drilling in Various Formations (45) water well in feet average( 700)ft for each Bore Hole (31,500 ft) using Rotary, Percussion and DTH drilling Rigs in over hole Sudan
    *Executing Hand Pumps drilling and Installation (Mud Engineering supervisor)
    IN South Kordofan African Muslims Agency tell (28) water well in feet average (180) ft for each Bore Hole (5,040 ft) using DTH drilling Rigs
    Drilling in Various Formations (36) water well in feet average 850ft for each Bore Hole (30,600 ft) using Rotary, Percussion and DTH drilling Rigs in over whole Sudan
    *July 2005 —February 2006
    * Driller using Core drilling and SPT system for soil investigations also participates in soil test in Dubai Metro, Jabal Ali Palm, Jomeira Palm and Dubai marina in Dubai UAE Arab Centre for Engineering Studies

    *2006 up now 2010
    * Technical manager
    * administrate all water projects
    *DAI Organization South Kodofan 10 Simi water yards (Sudan)
    *Government Water well in Abyai Locality (11) water Yards in feet average (1100)ft for each Bore Hole (12,100 ft)
    *Executing (21) water well to CDF (Community development Fund World Bank) Sudan
    Average Footages Drilled
    128,820 FT

    *English and Arabic

  • علي January 11, 2012, 2:36 pm

    My 6 years experience in the Gas Inventory and classification of degree I’m Management

Leave a Comment