Beginning with the June 2015 data, EIA is providing estimates for crude oil production (including lease condensate) based on data from the EIA-914 survey. Survey-based monthly production estimates starting with January 2015 are provided for Arkansas, California, Colorado, Kansas, Louisiana, Montana, New Mexico, North Dakota, Ohio, Pennsylvania, Texas, Utah, Wyoming, and the Federal Gulf of Mexico. For two states covered by the EIA-914—Oklahoma and West Virginia—and all remaining oil-producing states and areas not individually covered by the EIA-914, production estimates are based on the previous methodology (using lagged state data). When EIA completes its validation of Oklahoma and West Virginia data, estimates for these states will also be based on EIA-914 data. For all states and areas, production data prior to 2015 are estimates published in the Petroleum Supply Monthly. Later in 2015, EIA will report monthly crude oil production by API gravity category for the individually-surveyed EIA-914 states. […]