Energy Oil-Gas Drilling Project in Texas

I seek recommendations and best route for raising investment funds for our oil-gas exploration and drilling project in Texas.
Caddo Energy LLC project is a six year initial program with investment funding of $150 Million in tranches.
Prefer to keep the project as an oil-gas joint venture or private common stock. Not interested in going public. Should be Sharia compliant as no debt and no illegal activities.
How would the Islamic investment industry recommend working with Caddo to fund this project.