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Mountaineer Gas Pipeline
The Mountaineer Gas Pipeline is a natural gas distribution pipeline in West Virginia's Eastern Panhandle, built in phases, whose final Potomac Pipeline segment entered service in 2025.
Mountaineer Plant
The Mountaineer Plant is a 1,300 MW coal-fired power station in New Haven, Mason County, West Virginia, owned by Appalachian Power (American Electric Power) and in service since 1980.
MountainWest Pipelines
MountainWest Pipelines is a group of FERC-regulated interstate natural gas transmission and storage systems in the Rocky Mountains, serving Wyoming, Utah, and Colorado and owned by The Williams Companies since 2023.
Moura (battery company)
Moura (Acumuladores Moura S.A.) is a Brazilian battery manufacturer founded in 1957 in Belo Jardim, Pernambuco, and the largest in Brazil's battery industry, producing over 11 million batteries a year.
MOX fuel
MOX fuel (mixed oxide fuel) is nuclear reactor fuel made of plutonium dioxide blended with uranium dioxide, fabricated from reprocessed plutonium and used in power reactors since the 1980s.
Moxi Gas Asset
Moxi Gas Asset (磨溪) is a natural gas asset in Sichuan, China, wholly owned and operated by PetroChina. Discovered in 2012, it is China's largest single monoblock marine carbonate gas reservoir.
Moxie Power Melamaruthur Thermal Power Plant
Moxie Power Melamaruthur Thermal Power Plant, also known as Mutiara Coastal Energen, is a 1,200 MW coal-fired power station in Thoothukudi district, Tamil Nadu, India.
Moxion Power
Moxion Power Co. was a Richmond, California manufacturer of mobile battery energy storage units founded in 2020 to replace diesel generators, and it shut down in July 2024.
Mphanda Nkuwa project
The Mphanda Nkuwa project (MNK) is a planned 1,500 MW run-of-river hydroelectric dam on the Zambezi River in Mozambique, developed by EDF, TotalEnergies, and Sumitomo Corporation.
MPLX LP
MPLX LP is a master limited partnership formed by Marathon Petroleum in 2012 to own and operate midstream pipelines and energy logistics assets, headquartered in Findlay, Ohio.
mPower (SMR)
mPower is an integral pressurized light water small modular reactor developed by Babcock & Wilcox, later BWXT; it won the first DOE SMR cost-share award, was suspended in 2017, and was revived in 2026.
Mpungi Oil Field
Mpungi, also written M'Pungi, is a deepwater oil field in Angola's Block 15/06, about 350 kilometers northwest of Luanda, discovered by Eni and brought onstream in January 2016.
MRC Global
MRC Global Inc. was a Houston, Texas-based distributor of pipe, valves and fittings to gas utility, energy and industrial end-markets, acquired by DNOW Inc. in 2025.
Mt Owen (coal mine)
Mt Owen is an open-cut coal mine in the Upper Hunter Valley of New South Wales, Australia, 20 kilometers north of Singleton, producing thermal and semi-soft metallurgical coal for export.
Mt Thorley Warkworth Coal Mine
Mount Thorley Warkworth, formed from the Mount Thorley and Warkworth mines in 2004, is an open-cut coal operation near Singleton, New South Wales, producing coking and thermal coal.
Mtwara–Dar es Salaam Gas Pipeline
The Mtwara–Dar es Salaam Gas Pipeline is a 542-kilometer Tanzanian natural gas pipeline from Mnazi Bay near Mtwara to Dar es Salaam, commissioned in 2015.
Muara Karang power station
Muara Karang power station is a gas-fired power generating complex in North Jakarta, Indonesia, operated within the PLN group and serving the Jakarta electricity system.
Muara Tawar power station
Muara Tawar power station is a combined-cycle gas power plant in Bekasi, West Java, operated by PLN Nusantara Power, with a capacity of about 2,700 MW after a 650 MW expansion inaugurated in 2025.
Muarah Laboh geothermal plant
The Muarah Laboh geothermal plant, also written Muara Laboh, is an 86 MW geothermal power station in Solok Selatan, West Sumatra, Indonesia, operating since 2019.
Mubadala Petroleum
Mubadala Petroleum was an international upstream oil and gas company headquartered in Abu Dhabi, established in 2012 and wholly owned by Mubadala Investment Company, rebranded as Mubadala Energy in 2022.
Mud motor
A mud motor, also called a drilling motor or positive displacement motor (PDM), converts circulating drilling fluid into rotation of the drill bit, enabling modern directional drilling.
Mud weight
Mud weight, or mud density, is the mass per unit volume of a drilling fluid, commonly reported in pounds per gallon and used to control wellbore pressure.
Mudanjiang-2 power station
Mudanjiang-2 power station (华电牡丹江第二发电厂) is a coal-fired power station in Mudanjiang, Heilongjiang, China, owned by China Huadian, with nine units and at least 1,015 MW still operating.
Mugardos LNG Terminal
The Mugardos LNG Terminal is a liquefied natural gas import and regasification plant in the ría de Ferrol, Galicia, Spain, opened in 2007 and operated by Reganosa.
Muguajie Gangue power station
Muguajie Gangue power station (木瓜界) is a coal-fired power plant in Shuozhou, Shanxi, China, with two 660 MW units burning coal gangue from the adjacent Pingshuo washery.
Mühleberg Nuclear Power Plant
The Mühleberg Nuclear Power Plant, also known as Kernkraftwerk Mühleberg or KKM, was a Swiss boiling water reactor near Bern, shut down in December 2019.
Muja power station
Muja power station is a state-owned coal-fired power station at Collie, Western Australia, owned by Synergy Energy and built in four stages between 1965 and the mid-1980s.
Mukhaizna Oil Field
The Mukhaizna oil field is a giant heavy oil field in south-central Oman, discovered in 1975 and operated by Occidental Petroleum using large-scale steam injection.
Mukran FSRU
The Mukran FSRU is a floating LNG import terminal at the port of Mukran on Rügen in the German Baltic Sea, operated by Deutsche ReGas since September 2024.
Mula Solar Photovoltaic Power Plant
The Mula Solar Photovoltaic Power Plant is a solar power station in Mula, Region of Murcia, Spain, with a peak capacity of 493.74 MWp, connected to the grid in July 2019.