U.S. issues potential setback to Shell's Arctic drilling plan
June 30, 2015 at 16:32 PM EDT
WASHINGTON, June 30 (Reuters) - The Obama administration issued a potential setback to Royal Dutch Shell's Arctic oil exploration plans on Tuesday, telling the company that established wildlife protections prevent it from drilling two rigs simultaneously within 15 miles (24 km) of each other, as it had planned.
