RE:RE:RE:RE:March 31.50-.75? I would sooner put Erin up for sale to the highest bidder. A preliminary economic assessment (PEA) for the project forecast a 21-year mine life and gross revenue of $2.04 billion ($97mil/yr). With a net operating margin of 68.7% ($66.7M/yr) or $.87/sh/yr for the next 21 years.