While U.S. drilling on land has fallen along with the price of crude, the risky and expensive drive to pull oil from the depths of the Gulf of Mexico is showing little evidence of a slowdown. Oil rigs working in the Gulf will increase by more than 30 percent this year compared with 2014, according to data from Wood Mackenzie, an industry consultant. At the same time, the number of land-based rigs has fallen by a third since October, bearing the brunt of industry-wide cutbacks that have shed tens of thousands of jobs in the U.S. The reasons are two-fold. The rise in deep-water drilling stems from years of planning and billions of dollars already invested, and the payoff can be considerable. Anadarko Petroleum Corp.’s Lucius platform can handle as much as 80,000 barrels a day from the six wells that feed into it, an output that […]