Exhibit 21.1

List of Subsidiaries of WPX Energy, Inc.

(all Delaware entities unless otherwise indicated)

1.	Mockingbird Pipeline, L.P.
2.	RW Gathering, LLC
3.	WPX Energy Appalachia, LLC
4.	WPX Energy Arkoma Gathering, LLC
5.	WPX Enterprises, Inc.
6.	WPX Energy Gulf Coast, LP
	Assumed name in Texas: Williams Prod. Gulf Coast, L.P.
7.	WPX Energy Holdings, LLC
8.	WPX Energy Keystone, LLC
9.	WPX Energy Marcellus Gathering, LLC
10.	WPX Energy Mid-Continent Company, an Oklahoma corporation
11.	WPX Energy Production, LLC
	Fictitious name in Oklahoma: WEG-Production Company, LLC
12.	WPX Energy Rocky Mountain, LLC
13.	WPX Energy RM Company
14.	WPX Energy Marketing, LLC
15.	WPX Energy Marketing Services Company, LLC
16.	WPX Energy Services Company, LLC
17.	WPX Energy Williston, LLC
	Trade name in North Dakota: D3 E & P LLC
18.	WPX Gas Resources Company
19.	Betterit Land & Title Holding Company, LLC - a New Mexico Limited Liability Company
	Fictitious name in Oklahoma: WPX Energy Chaco Slope, LLC
20.	WPX SJB Gathering, LLC

21.	RKI Exploration & Production, LLC
22.	Khody Land & Minerals Company - an Oklahoma Corporation
23.	RKI Finance Corp. - an Oklahoma Corporation
24.	Stateline Gathering, LLC - an Oklahoma LLC
25.	Stateline Water, LLC - an Oklahoma LLC
26.	Red Eagle Gathering, LLC

International subsidiaries:

1. WPX Energy International Oil & Gas (Venezuela), Ltd. – a Cayman Islands corporation