M​arcellus (Mitsui E&P USA LLC)

• Chesapeake Energy Corporation – Operating partner of Mitsui's Marcellus leases in Pennsylvania through its subsidiary Chesapeake Appalachia LLC.
  

• Statoil – Non-operating partner in Chesapeake-operated Marcellus leases through its subsidiary, Statoil USA Onshore Properties Inc.
  

• Alta Energy, L.P. – Non-operating partner in Chesapeake-operated Marcellus leases.
  

• Williams Partners L.P – Operating partner of Midstream business JV in our Chesapeake-operated Marcellus lease areas.
  

• Other operating partners under JOAs, such as Chief Oil & Gas LLC,  Southwestern Energy Production Company, Seneca Resources Corporation, Repsol Oil & Gas USA, LLC, Diversified Energy LLC,  and Warren Resources.
  

​Eagle Ford (MEP E&P Texas LP)

• Sanchez Energy Corporation – Operating partner of all of Mitsui's Eagle Ford leases in South Texas through its subsidiary, SN EF Maverick, LLC.
  

• Blackstone Energy Partners – Non-operating partner in the Sanchez-operated Eagle Ford leases through its subsidiary, Gavilan Resources LLC. 

• Venado EF L.P. – An affiliate of KKR and non-operating partner.

• Korean National Oil Company – Non-operating partner through its affiliate Eagle Ford TX LP.

• Western Gas Partners – Operating partner of Midstream business JV in our Eagle Ford acreage through its subsidiary, Springfield Pipeline LLC.

Kaikias (MOEX North America LLC)

• Shell – Operating partner in the Kaikias Project in the US Gulf of Mexico with MOEX North America LLC (MOEX NA), which is a wholly owned subsidiary of Mitsui Oil Exploration Co. Ltd.