Oil production from key shale formations in North Dakota and Texas increased by 28,000 barrels per day (bbl/d), or 1%, in January, Bentek Energy said in Feb. 17 release.

In South Texas, Eagle Ford basin crude oil production in January was 1.6 MMbbl/d, a 37% increase from the prior year, according to Catherine Bernardo, Bentek Energy manager of energy analysis.

“Rig count in the Eagle Ford dropped by 33 rigs since the beginning of the year, while production managed to increase slightly,” Bernardo said in a statement. “Many producers have the cushion of hedging programs in place, which is helping them minimize the impact of the current oil price environment and continue production. Other producers are likely focusing their efforts on their more prolific, higher production rate acreage.”

In North Dakota, crude oil production in the Bakken Shale formation of the Williston Basin averaged 1.2 MMbbl/d in January, a 28% increase from January 2014. Combined output from both Bakken and Eagle Ford is up 33% from same time period last year. Bentek analysis shows that from January 2014 to January 2015, total U.S. crude oil production has increased by 1.5 MMbbl/d.

“Prices of Eagle Ford and Bakken Shale oil finished January on a stronger note, showing a slight recovery from the sharp declines of the final quarter of 2014,” said Jacqueline Puig, Platts associate editor of Americas crude, in a statement.

The Platts Eagle Ford Marker, a price assessment reflecting the value of oil out of the formation, is up 6.8% since January 1 of this year with an average price year to date of $89.81/bbl. The marker has ranged between $46.22/bbl and $110.71/bbl from mid-February 2014 to mid-February 2015.

The price of crude oil out of the Bakken formation at Williston, North Dakota, has averaged $76/bbl since the April 22, 2014 inception of the Platts Bakken price assessment and has ranged between a low of $38.43/bbl and a high of $96.59/bbl. The high was hit in mid-June, 2014 and the low was hit earlier this year, on Jan. 13. The price has stabilized more recently near the $57.45/bbl, hit on Feb. 13.

The Platts Bakken is a daily assessment of price for oil closest to the wellhead prior to determination of transportation by rail or pipe. The assessment reflects a sulfur content of 0.2% or less and an American Petroleum Institute (API) gravity of 42 or less, similar to the nature of North Dakota Light Sweet crude. The Platts Eagle Ford Marker reflects the value of a median 47-API Eagle Ford crude barrel, based on the crude’s product yields and Platts product price assessments, adjusted for U.S. Gulf Coast logistics.

Bentek Energy is an analytics and forecasting unit of Platts.