A Marathon Pipe Line employee showing a landowner where pipelines are located on their property with a small tablet while they walk through the woods

Landowners and Residents

At Marathon Pipe Line LLC (MPL), we understand and prioritize the needs of landowners and residents through meaningful two-way communication, safety resources and emergency preparedness.

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Our Commitment

Every day, our pipeline network safely transports the vital energy products our communities need to thrive. Our commitment to transparency and community engagement in our pipeline operations means keeping you safe, informed and supported at every step of the way. 

  • Planning

    We work with landowners and residents to plan the safe location of property improvements such as building a deck or patio, installing a fence, planting trees, etc.

  • Responding

    Our prompt response to 811 requests supports landowners and residents in locating buried pipelines on their properties and marking them for safe excavation and land use.

  • Notifying

    Before conducting routine inspections and ongoing maintenance of MPL-operated pipelines, we will notify property owners in a timely manner.

  • Engaging

    As part of our Earning Your Trust program, we engage with and communicate with community stakeholders about pipeline safety and the projects we are undertaking on their property.

Report a Pipeline Emergency

To report a potential leak, suspicious activity near an MPL-operated pipeline or facility, or if a pipeline is struck or exposed, call our 24/7 emergency number: 1-833-675-1234.

Where We Operate

We share nearly 10,000 miles of pipeline rights of way with communities across the United States. To learn more about the pipelines we operate and the products they transport, use the search function or zoom controls on our interactive map. Click any red line to view detailed information.

Explore Our Pipeline Operations

Accept User Terms for Map

Pipeline information provided from MPL's Geographic Information System, 2025. Street map information provided by Google. MPL is providing this map as a courtesy and for general information purposes only. It does not represent that the information contained herein is accurate for any particular purpose, and therefore disclaims all warranties, expressed or implied, including the warranty of fitness for a particular purpose. Independent verification from experts should be obtained prior to any specific use. Recipient accepts full responsibility for any consequences associated with use of this information. This information does not replace calling 811 before digging. As such, you are still required to call 811 before digging.

Pipeline Finder App

With the Pipeline Finder App, you can easily locate MPL-operated pipelines, access essential safety guidelines, and find emergency contacts. 

Get Our Pipeline Finder App

A black button with the Apple logo and CTA to download the MPL Finder app on the App Store      A black button with the Google Play logo and CTA to download the MPL Finder app for Google Play

A picture of a the MPL Pipeline Finder App on a smart phone screen

Questions About the Pipeline on Your Property?

Our network of Right-of-Way Specialists is available to answer your questions. Find your location and connect directly with your local contact.

Watch on Youtube: 811

Safe Digging

Digging near underground pipelines can cause damage, injury or death. Whether you plan to do it yourself or hire a contractor, smart digging means dialing 811 or going to your state 811 center’s website, at least three business days before digging to have buried utilities located and marked. 

  • Notify Us

    Contact your local Right-of Way Specialist before planning any type of construction project on or near the pipeline right of way.

  • Report Activity

    Call our 24/7 emergency phone number (1-833-675-1234) to report any unauthorized excavation, suspicious activities or a leak on or near the pipeline right of way.

Contact 811 Before All Digging Projects

With the possibility of multiple underground utilities located on your property, it's essential to know what lies below your landscape. Call 811 or go to call811.com before starting any excavation work on your property to help us prevent pipeline damage and protect the public.

  • A small, white graphic of a tree
    Planting Trees or Shrubs
  • A small, white graphic of a car
    Installing a Driveway
  • A small, white graphic of a patio
    Building a Deck or Patio
  • A small, white graphic of a shovel
    Digging a Pond or Swimming Pool
  • A small, white graphic of a fence
    Installing a Fence
  • A small, white graphic of a mailbox
    Installing a Mailbox Post

Steps for Safe Digging

Practice caution when developing your land. If an MPL pipeline crosses your property, do not excavate or obstruct the area by planting trees or vegetation that could impede access to the right of way. If you are planning a digging project, follow these steps:

  1. Call 811 at least three business days before digging or submit an online request at call811.com.
  2. Wait until underground facilities and utilities are marked.
  3. Dig carefully to avoid hitting cables or pipes.

Property Development Specifications

Property developments and improvements near our pipelines can be dangerous. To keep landowners and residents safe, we have established a guide on safe digging distances from our pipeline.

Setback Distances

New house, business, etc. 50'
Addition to an existing dwelling, etc. 50'
Unoccupied permanent structure 50'

Garage

 50'

Barn

 50'

Deck and patio

 50'

Swimming pool

 50'

Pond

 50'
Semi-moveable structure 25'
Garden shed 25'
Septic tank and leach field 25'
Telephone/light pole 25'
Water well 25'
Trees 25'
Yard light or mailbox 10'
Fence post 5'

NOTE: Site specific plans are requested whenever the structure distance cannot meet the setback requirements. If your proposed activity is not listed, please contact your Right-of-Way Specialist for additional information on setback distances.

Hitting What’s Underground Can Hurt You

Damaging a petroleum pipeline can cause fire or explosion and pose a serious risk to public safety.

Signs of a Pipeline Leak

Use your sense of sight, hearing and smell to recognize and respond to a potential pipeline leak. 

Steps to take in the Event of a Pipeline Leak

  1. Move as far away as possible in an upwind, uphill direction
  2. Call 911
  3. Call our 24-hour emergency number: 1-833-675-1234
  4. Keep away and keep others away from the area

Do Not:

  • Walk through or touch any liquid or vapor that may have come from the pipeline
  • Attempt to stop material from leaking, shut off valves, or put out a fire
  • Create any source of ignition (starting an engine, turning switches on or off, etc.)

Man standing in a grassy field between pipeline markers with mountains in the background

Inspection and Maintenance

An MPL representative will notify property owners in person, by mail, or by phone of any scheduled inspections or maintenance that requires us to access a right of way.

You will be notified of:

Watch on Youtube: Video Testimonial

Earning Your Trust

At MPL, we are all Guardians of Public Safety. Earning trust is at the heart of our mission to safely and reliably operate pipeline. We are here for you, no matter how many blocks, miles, or states apart we are. Your safety is our mission. 

Safety Resources

These go-to resources offer guidance to landowners and residents on understanding pipeline safety risks, as well as how to prepare for land development and farming activities.

A Marathon Pipe Line gas terminal facility next to to a large pond

Stay Connected

Join Our Facebook Group:

Marathon Pipe Line LLC Stakeholder Community

Stay up-to-date on upcoming events and giveaways, and learn more about pipeline safety. 

Join Our Group

Working Together

At MPL, we're committed to earning your trust, delivering timely information, and maintaining open communications. Let us answer your pipeline safety questions.

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