General Electric could be key to Halliburton winning regulatory approval for its $35 billion buyout of rival oil-service company Baker Hughes.

The Post reported Thursday that the Department of Justice had determined that Halliburton needs to find a single buyer of assets generating about $7.5 billion of revenue to pass muster.

The most logical buyer — it might turn out to be the only candidate — is GE, which has tens of billions in cash from selling much of its financial services business, and is building its presence in oil services.

GE will bid at the right price, sources close to the company said. GE declined to comment.

On Friday, Halliburton said the DOJ had not told the company it would require the businesses to be sold to one buyer and was continuing to market the assets separately.