List of pipeline projects

4482 projects, most-worked on ProvenHand first

Project	Operator	States	Built
Majorsville to Beech Bottom	Markwest
Majorsville to Hopedale	Markwest
Majorsville to Welling Pipeline Project	MarkWest Liberty Midstream & Resource	PA
Mako Pipeline – Phase II		PA
Malaga Lateral Project	Transwestern Pipeline Company, LLC	NM	In service 2016
Malta Line Extension Project	WBI Energy Transmission, Inc.	MT	Started 2022
Manning Compressor Station	Northern Border Pipeline Company	ND	2025–2026
Manti Exploration Operating coastal use permit P20100591 pipeline	Manti Exploration Operating, LLC	LA
Manti Operating coastal use permit P20010221 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20011095 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20011096 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20011112 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20011643 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20020393 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20020871 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20021118 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20021136 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20021165 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20021178 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20021194 pipeline	Manti Operating Company	LA
Manti Operating coastal use permit P20030648 pipeline	Manti Operating Company	LA
Mapleton Terminal - Cass County	Nustar Pipeline Operating Partnership L.p.	ND	Started 2017
Marathon Pipe Line coastal use permit P20121472 pipeline	Marathon Pipe Line LLC	LA
Marathon Pipe Line coastal use permit P20180156 pipeline	Marathon Pipe Line LLC	LA
Marathon Pipe Line coastal use permit P20190212 pipeline	Marathon Pipe Line LLC	LA
Marcellus Gathering System Pipeline		WV
Maricopa Lateral Expansion Project	El Paso Natural Gas Company, L.L.C.	AZ	Started 2025
Marietta Compressor Units Replacement Project	Texas Eastern Transmission, LP	PA
Mariner East 2	Sunoco Pipeline (Energy Transfer)	PA	2017–2022
Mariner East I		PA	In service 2014

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