Some big numbers are being discussed by the Alaska Gasline Development Corporation when it comes to the proposed liquefied natural gasline project.

The United States and China recently agreed to work together to develop the project. It includes a gas treatment plant on the North Slope, an 800-mile pipeline and a liquefaction facility and export terminal in Nikiski.

Lieza Wilcox, the Vice President of Commercial and Economics at the Alaska Gasline Development Corporation (AGDC), spoke at the Anchorage Chamber of Commerce "Make it Monday Forum".  She says the projected cost now stands at $43 billion.

Wilcox also told the group, that depending on how much equity ownership the state wants to take, Alaska could expect returns of between $750 million and $2 billion annually. She says for that top end figure, the state would have to come up with $11 billion for a 25 percent equity stake in the pipeline. It is expected that 75 percent of the costs would be bank debt.

A number of Chinese financial institutions and Chinese energy companies are part of a joint agreement with the United States on the project. Wilcox told KTVA Monday that it would take more than projections to make the project happen. 

"I think it won't happen on its own. It will take a lot of work both by our corporation. It will take work by the producers. It will take the willingness of the state to make the project happen. I think what we're saying is that we're going to present the opportunity, we're going to break it down as transparently as possible," she said.

Wilcox took written questions from the audience on the proposed pipeline. Some wanted to know about permitting issues when it came to salmon streams. One person asked how AGDC can promote a stable fiscal environment for investors when oil tax laws have been changed several times over the last 12 years.

"Tax stability is important. Stability for LNG projects is important," she replied.

Wilcox says the project will create about 12,000 construction jobs and 1,000 jobs to operate the project.

Wilcox says the next step includes getting specifics by May of 2018 about interest rates, terms of debt, system capacity and questions over shipping.