Oct 28 (Reuters) - Following are Iraqi oil and gas deals in order of reserves size signed after auctions this year and last year:
* RUMAILA
Britain's BP Plc and China's CNPC signed the first major post-U.S. invasion oil deal last year for the supergiant Rumaila field, with estimated reserves of 17 billion barrels. BP said it would invest around $15 billion. BP's stake is 38 percent and partner CNPC's 37 percent. Iraq holds 25 percent.
* WEST QURNA PHASE TWO
Russian energy giant Lukoil and Norway's Statoil sealed a deal for the supergiant, 12.9-billion-barrel oilfield in Iraq's south on Jan 31. Iraq holds a 25 percent stake, Lukoil 56.25 percent and Statoil 18.75 percent. Lukoil put total investment at more than $30 billion.
* MAJNOON
The massive 12.6-billion-barrel Majnoon oilfield was won by Royal Dutch Shell and Malaysia's Petronas [PETR.UL]. They signed the final pact on Jan 17. Shell has a 45 percent share, Petronas 30 percent and Iraq 25 percent. Shell officials have said the firms would invest "tens of billions" of dollars.
* WEST QURNA PHASE ONE
West Qurna Phase One was sold to Exxon Mobil and Shell, who signed the deal on Jan 25. The field has reserves of 8.7 billion barrels. Exxon has a 60 percent interest in the consortium, with Iraq holding 25 percent and Shell the rest.
* HALFAYA
China's CNPC, France's Total and Petronas clinched the final contract for Halfaya on Jan 27. Total holds an 18.75 percent interest in the consortium, CNPC 37.5 percent, Petronas 18.75 percent, and Iraq 25 percent. Halfaya has estimated reserves of 4.1 billion barrels of oil.
* ZUBAIR
Italy's Eni signed a contract with Iraq on Jan 22 for the 4-billion-barrel Zubair oilfield. Eni has a 32.81 percent stake in the field, with partner U.S.-based Occidental Petroleum Corp holding 23.44 percent, South Korea's KOGAS 18.75 percent and Iraq's Missan Oil Company the remaining 25 percent. The consortium plans to invest more than $20 billion.
* MAYSAN
Iraq signed a deal on May 17 with China's CNOOC and state-run Turkiye Petrolleri (TPAO) for a service contract for the 2.5-billion barrel, three-oilfield Maysan complex. The fields were offered in the first auction of oilfield contracts but not awarded. CNOOC said it will hold a 63.75 percent stake in the venture while TPAO holds 11.25 percent.
* AL-AHDAB
CNPC started work in March on the al-Ahdab oilfield in southeastern Wasit province after renegotiating an old development deal that dated back to Saddam Hussein's government. The field has estimated reserves of 1 billion barrels.
* GHARAF
A smaller oilfield with 900 million in reserves, Gharaf was won by Petronas and the Japan Petroleum Exploration Co (Japex) and a deal was signed on Jan 18. Petronas will hold 45 percent, Japex 40 percent and Iraq 25 percent. The consortium expects to invest $7-$8 billion.
* QAYARA AND NAJMAH
The Qayara and Najmah oilfields were won by Angolan state firm Sonangol, which signed the deal on Jan 26 and has a 75 percent stake in the venture. Qayara has reserves of 800 million barrels and Najmah 900 million. The firm has said it will invest $2 billion in Qayara.
Iraqi gas deals:
* BADRAH
Gazprom Neft, the oil arm of Russia's Gazprom, signed a deal for the Badrah field on Jan 28 with partners TPAO, KOGAS and Petronas. The consortium is to invest $3.52 billion. Gazprom Neft holds 30 percent, KOGAS 22.5 percent, Petronas 15 percent, TPAO 7.5 percent and Iraq 25 percent.
* AKKAS
South Korea's KOGAS and Kazakhstan's KazMunaiGas Exploration & Production won a deal to develop the Akkas gas field on Oct 20. Total investment will be about $4.4 billion, South Korea's Ministry of Knowledge Economy said.
* SIBA
Kuwait Energy and Turkey's TPAO won the bid for Siba gas field in Iraq's relatively peaceful southern oil hub of Basra on Oct 20. TPAO said the group would invest $1 billion.
* MANSURIYAH
TPAO, Kuwait Energy and Kogas won the rights to mine the Mansuriyah gas field on Oct 21. Investment in the field is expected to be $2.5 billion, TPAO said. (Compiled by Isabel Coles; editing by James Jukwey)