SAO PAULO, April 2 (Reuters) - Brazilian energy firm Enauta has presented an offer to combine with fellow oil firm 3R Petroleum, which in turn said it had halted talks for a proposed tie-up with rival PetroReconcavo to analyse the new bid.

Enauta disclosed the offer late on Monday, saying the combined company would be "one of the most diversified independent oil and gas companies in Latin America," potentially producing more than 100,000 barrels of oil equivalent per day.

The move comes as smaller Brazilian oil companies look for consolidation following years of growth driven by purchases of assets previously owned by state-run oil giant Petrobras .

Enauta said in a securities filing that its offer was for an all-stock deal that would include new shares of 3R being issued and an exchange for Enauta shares. 3R shareholders would hold 53% of the combined company, while Enauta investors would own 47%, it said.

The combination would result in a "balanced, five-year high organic growth portfolio with ability to add value in an environment of consolidation and resilience to commodity pricing cycles," Enauta said.

Since January 3R had been in talks for a potential carve-out of its onshore oil assets and subsequent combination with peer PetroReconcavo, a deal suggested by 3R shareholder Maha Energy .

In a separate securities filing, 3R confirmed the Enauta offer and said it would temporarily halt talks with PetroReconcavo to analyze Enauta's bid within 30 days.

Enauta did not elaborate on the potential benefits of the deal, but said its bid implied a 12% premium for 3R shareholders over the company's current market capitalization.

"The proposal seems to be accretive for both sides, mainly for 3R as it sets a new floor for its stock price," Citi analysts led by Gabriel Barra said in a note to clients.

"However, the operational synergies are not so clear as it is in the PetroReconcavo and 3R merge."

Enauta has a market capitalization of 7.75 billion reais ($1.53 billion), while 3R's market cap currently stands at 8.02 billion reais, according to LSEG Workspace data. ($1 = 5.0546 reais) (Reporting by Andre Romani and Gabriel Araujo Editing by Tomasz Janowski)