North Dakota's oil industry posted another tepid month in November with production falling 2.1 %.
The state's minerals resources director, Lynn Helms, called it a "moderate" decline, likely caused by a patch of bad weather in November.
North Dakota's oil output in October was flat, while Helms reiterated Tuesday that severe winter storms greatly slashed December's production. "It took well into January to really recover," he told reporters in a conference call.