EOG Resources Inc. (NYSE: EOG) aims to sell greater Green River Basin assets in an exit of a play that appears to partly overlap acreage the Houston-based company purchased from Yates Petroleum Corp. in late 2016.

The assets have not been a recent focus for EOG, said BMO Capital Markets, which is overseeing the sale. The company is selling a swath of more than 340,000 contiguous net acres with an average 83% working interest.

The assets also include positive cash flow of $2 million per month and stable net production of about 40 million cubic feet equivalent per day (MMcfe/d), according to BMO. More than 200,000 net acres are HBP with a substantial term remaining on the rest of the acreage.

Though EOG’s $2.5 billion acquisition of Yates in late 2016 is often discussed in terms of Delaware Basin core acreage and 200,000 net acres in the Powder River Basin, the deal also included 1.1 million net acres in New Mexico, Wyoming, Colorado, Montana, North Dakota and Utah.

The vast Green River position largely covers Wyoming counties as well as portions of northern Colorado and Utah.

EOG divides the Green River into east and west sections, with most production in the west. The acreage includes Sublette County, Wyo., where QEP Resources Inc. (NYSE: QEP) said July 24 it had agreed to sell 17,400 net acres for $740 million.

The West Area contains the “prized Big Piney/LaBarge asset” with area net production of 37 MMcfe/d, BMO said. Development opportunities include modernization of horizontal, multi-bench Frontier gas development and waterflood expansion of shallow Mesaverde oil.

The Big Piney Field was historically developed vertically with commingled completions. From 2003 to 2009, EOG drilled 27 horizontal wells in the 2nd Frontier and one horizontal well in the 1st Frontier.

Additionally, BMO said the area holds up to 20 million barrels of oil reserve potential across the Almy/Transition and Mesaverde formations.

The East Area adds an average 3 MMcfe/d of net production and exploration potential targeting Lewis, Mesaverde/Almond, Rocksprings, Ft. Union and the Niobrara formations. The Lewis Shale consists of up to 2,600 ft of mainly marine sediments deposited in deltaic, shelf, ramp-slope and deep basin environments.

EOG says the area offers more than 750 quantified drilling locations, inventory that can maintain and grow production. The East Area includes about 400 identified horizontal drilling locations targeting the Lewis and Almond formations.

BMO said EOG’s acreage has seen significant basin offset activity with 15 rigs drilling and 472 permits filed within the past 12 months. BP Plc (NYSE: BP) has conducted horizontal development and has permitted locations near EOG’s acreage.

A data room is open. A bid date has not yet been announced. For information, email eog.greenriver@bmo.com or contact Geoff Roberts, BMO’s head of U.S. A&D, at 713-547-0808.

Darren Barbee can be reached at dbarbee@hartenergy.com.