FORT MCMURRAY, AB - Alberta stands to gain half a trillion dollars in taxes over the next 25 years if three major pipeline projects are approved, according to a report released Tuesday.

The report, published by the Canadian Energy Research Institute, examines the potential financial benefits from Keystone XL, Trans Mountain and Northern Gateway - proposed projects that are facing stiff opposition - using data based on the assumption the projects would gain approval.

The report states that oil-rich Alberta will receive approximately $551.6 billion in taxes between 2011 and 2035 from the three projects. B.C. is estimated to get $9 billion, while Ontario would collect $28 billion.

In recent weeks, B.C. Premier Christy Clark has demanded a larger share of profits generated from Enbridge's Northern Gateway pipeline, as well as increased safety and security on the line, before she is willing to give approval to the proposed $5.5-billion project that's slated to connect the oilsands to Asia-bound oil tankers to the Pacific coast.

Clark argues that the province would carry the majority of the risk, while receiving little financial gains, $1 billion, compared to neighbouring Alberta, at $73 billion. Ontario would gain $4 billion.