National Grid Plc

outhwestern Energy Company is a growing independent energy company primarily engaged in natural gas and crude oil exploration, development and production within North America. We are also focused on creating and capturing additional value through our natural gas gathering and marketing businesses, which we refer to as Midstream Services. Exploration and Production - Our primary business is the exploration for and production of unconventional oil and natural gas. Our current operations are principally focused on development of unconventional oil and natural gas in the Fayetteville Shale in Arkansas, the Marcellus Shale in Pennsylvania, the Brown Dense in Arkansas and Louisiana and other new venture plays in North America. We primarily conduct our exploration and production operations through our wholly-owned subsidiaries, SEECO, Inc. and Southwestern Energy Production Company, or SEPCO. SEECO has historically operated exclusively in Arkansas. It holds a large base of both developed and undeveloped gas reserves in Arkansas and conducts the drilling programs for the Fayetteville Shale play and the conventional drilling program in the Arkansas part of the Arkoma Basin. SEPCO conducts development drilling and exploration programs in the Oklahoma portion of the Arkoma Basin, Texas, Pennsylvania, Louisiana, Colorado and Montana. SWN Drilling, a wholly-owned subsidiary of SEPCO, operates drilling rigs in the Fayetteville Shale play, Pennsylvania and Louisiana. Midstream Services - Our Midstream Services segment primarily supports our E&P operations and is currently concentrated on the Fayetteville Shale play. Midstream Services generates revenue from gathering fees associated with the transportation of natural gas to market and through the marketing of our own gas production and some third-party natural gas. We engage in gas gathering activities in Arkansas, Pennsylvania and Texas through our gathering subsidiaries, DeSoto Gathering Company, L.L.C. and Angelina Gathering Company, L.L.C. Our gas marketing subsidiary, Southwestern Energy Services Company, or SES, captures downstream opportunities which arise through marketing and transportation activity.

Centrica is a top 30 FTSE100 company. Our vision is to be the leading integrated energy company in our chosen markets in the UK and North America. Business description We are an integrated energy company operating predominately in the UK and North America. We understand that energy is essential for all of us, both now and for the future. That's why we are active in each stage of the energy lifecycle: from sourcing and generating to processing and storing; from trading and supplying to servicing and, crucially, to saving energy

Total SE engages in the exploration and production of fuels, natural gas and low carbon electricity. It operates through the following business segments: Exploration & Production; Integrated Gas, Renewables & Power; Refining & Chemicals and Marketing & Services. The Exploration & Production segment encompasses oil and natural gas exploration and production activities. The Integrated Gas, Renewables & Power segment comprises integrated gas and low carbon electricity businesses. It also includes the upstream and midstream LNG activities. The Refining & Chemicals segment engages in the activities of refining, petrochemicals and specialty chemicals. This segment also includes the activities of oil supply, trading and marine shipping. The Marketing & Services segment includes the global activities of supply and marketing in the field of petroleum products. The company was founded on March 28, 1924 and is headquartered in Courbevoie, France.