Drillers put rigs in U.S. oil fields back to work for a second straight week, suggesting the end of an unprecedented retreat from the country’s prolific shale formations.
Rigs targeting oil in the U.S. increased by five to 645, Baker Hughes Inc. said on its website Friday. They rose by 12 last week. Natural gas rigs fell by two to 217 and miscellaneous rigs dropped by two to one, bringing the total count up one to 863.
Brazil Energy Insight 
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