ABERDEEN, Scotland (Reuters) - Exxon Mobil Corp XOM.N and the Papua New Guinea government must return to the negotiating table so that a $13 billion expansion of gas production can proceed, the head of French oil major Total TOTF.PA, a partner in the plan, said on Thursday.

FILE PHOTO: Total CEO Patrick Pouyanne attends a hearing of French parliament's economic commission at the National Assembly in Paris, France, September 17, 2019. REUTERS/Charles Platiau/File Photo

The plan, which would double liquefied natural gas (LNG) exports from the South Pacific nation, hinges on agreements to develop two new gas fields, but PNG walked away from talks with Exxon on one of those fields last week.

The other agreement, with Total TOTF.PA, was sealed last September. It is intended that gas from the two fields would be processed at an expansion of the existing Exxon-operated PNG LNG plant in Port Moresby.

“Our project is joint with that of Exxon,” Total CEO Patrick Pouyanne told reporters after Total reported full-year results on Thursday. “There is a need for an agreement and the PNG government is aware of that.

“We have an agreement; they need to find an agreement. All of that needs negotiation, I don’t think negotiations should be done through media.”

LNG expansion is crucial for the impoverished nation, but the government has said that Exxon refused to budge on the financial terms for the P’nyang field and failed to come up with an offer it could accept.

Exxon has expressed disappointment at the breakdown of talks but has said it hopes to work towards an outcome that would be beneficial to all stakeholders.

The company’s press representative in PNG and the Prime Minister’s office had no immediate response to Pouyanne’s comments when contacted outside business hours on Thursday.

“Fundamentally, the two projects are good. Fundamentally, PNG wants the projects to go ahead, now it is a question of negotiation,” Pouyanne added.

“I’m convinced they’ll reach an agreement. It is a question of patience.”

Total beat profit forecasts on Thursday by keeping net adjusted profit for the fourth quarter steady at $3.2 billion, lifting shares in the French energy major.