However, the speaker said the matter had to be studied further.
The UNP had handed over to the parliamentary secretary general the motion on a deal involving exotic oil hedging derivatives that brought hundreds of millions of dollars in losses to the state-run oil firm Ceylon Petroleum Corporation (CPC).
Party leaders had earlier agreed to hold the debate in January.
The no-confidence motion came at a time of speculation that a group of opposition members who are now backing the ruling coalition of President Mahinda Rajapaksa may return to the opposition.
The supreme court, hearing a public interest petition, last week halted payments in the derivatives deal pending an inquiry by the Central Bank.
The deal involves three foreign banks - Citibank, Standard Chartered