The company wants to secure a listing on the Russian RTS and MICEX bourses in April and begin the London part of the initial public offering on June 26, the documents said.
Rosneft's IPO is likely to become Russia's largest ever and will be part of a complex Kremlin scheme to secure greater control over strategic energy resources in the world's second-largest oil exporter.
Rosneft will channel about $7.6 billion raised in the IPO to repay its debt to foreign banks, used to help the state buy a controlling stake in gas monopoly Gazprom.
The remaining $12 billion will fund a repayment of other debts at Rosneft, which became heavily leveraged last year when it bought the former core unit of fallen oil firm YUKOS, Yugansk, for $9.3 billion.
Many analysts see Rosneft's IPO as a Kremlin plan to fully legalise a murky nationalisation of Yugansk after destroying YUKOS -- once Russia's private energy champion -- with a huge back-tax bill.
The documents said Rosneft wanted to finish consolidating its units and switching to a single parent-company share by March or April. The plan would include Yugansk, as YUKOS still controls preferred shares in the unit.
Rosneft would then raise as much as $2 billion to $4 billion inside Russia by selling its shares on the RTS, on MICEX and via state-controlled bank Sberbank to private investors.
After raising the remaining $16 billion to $18 billion via a placement of Global Depositary Receipts in London, Rosneft would remain 64.1-percent controlled by the state.
About 27.5 percent of its stock would be freely floated, YUKOS would own 4.3 percent, minority shareholders in other Rosneft units would control 2.1 percent, and Rosneft's management would be granted 2 percent in stock options.
The acquisition of Yugansk, which produces over 1 million barrels per day, propelled mid-sized Rosneft to become the country's No 3 oil producer, behind LUKOIL and TNK-BP.
The firm foresees strong production growth in the years to come and wants to boost production by 8 percent in 2006 to 1.63 million bpd, to 1.75 million bpd in 2007, to 1.85 million bpd in 2008 and to 2 million bpd by 2009.
To achieve these ambitious targets, Rosneft wants to spend $17.4 billion on investment from 2006 to 2010, excluding new large acquisitions the company also plans.
The company wants to spend at least $4 billion on acquiring almost all the major new oil and gas fields which the state plans to auction in 2006.
These include the Sakhalin-3 field, which US Exxon Mobil had hoped to develop under a previous deal scrapped by the state, as well as the Trebs and Titov deposits in the Timan-Pechora region, which are also eyed by LUKOIL.
Rosneft also wants to win the Lodochny oil deposit in East Siberia and major Barents Sea offshore deposits.
The documents also said Rosneft expects its revenues to rise to $17.4 billion in 2006 from $17.1 billion in 2005, while earnings before interest, tax, depreciation and amortisation (EBITDA) would decline to $6.3 billion from $7.3 billion, mainly because the company expects a decline in global oil prices.