After 15 years of delay, redesign, and skepticism, the Sea Lion oil project has finally crossed the line from ambition to execution. On December 10, partners Navitas Petroleum (Israel) and Rockhopper Exploration (UK) took a long-awaited final investment decision (FID) on what will become the largest deepwater oil development in the South Atlantic outside Brazil. Few projects of comparable scale have taken so long to move from discovery to sanction, and fewer still have done so under such persistent political, legal and financial headwinds. With…