Marathon Petroleum Corporation

Stoy Station

Stoy, Illinois, United States

Certified through 2022

Project Name
Project Type
Stoy Grassland Project
Stoy Fruit Tree Grove
About the Program
Marathon Petroleum Company manages more than 1,300 acres of WHC-certified habitat at multiple locations, including the Stoy Station grasslands in Illinois. The site, which is roughly between Indianapolis and St Louis, features an 11-acre grasslands and a 0.15-acre fruit tree grove. The Stoy Wildlife Team seeks to grow grasslands vegetation and fruit trees to benefit insect and wildlife species, in particularly pollinators, while also providing for employee education and engagement.

Practices and Impacts
  • Mowing of the three grasslands sections, which total 11-acres, is done on a rotational basis to mow each section every three years. The Stoy Wildlife Team has identified hemp dogbane and morningglory as two potential emerging invasive species that will be research and managed in the coming year.
  • Every week, members of the Stoy Wildlife Team spend 15-30 minutes on site observing wildlife activity. In 2020, at least 15 wildlife species were observed on site, including eastern wild turkeys, red foxes, red-tailed hawks, ruby-throated hummingbirds, monarch butterflies, grackles, and bees.
  • Monitoring data from 2020 indicates that approximately 66% of the 39 vegetation species found on site are native species, including great blue lobelia, Kentucky bluegrass, and downy phlox, as well as multiple species of trees including prairie crabapple, pawpaw, and pecan.
  • Employees are regularly engaged in mowing and monitoring of the project. Over the last two years, members of the Stoy Wildlife Team have spent an average of 61 hours annually observing wildlife in the grasslands area, as well as brush hogging the site to remove woody vegetation.
  • In 2013, the Story Wildlife Team planted 46 fruit trees on site. As of 2020, 8 of those trees are remaining, including a black cherry, a crabapple, two fuji apples, a pawpaw, two pecans, and a persimmon.
  • The grasslands and fruit tree grove are in alignment with Marathon Petroleum Company’s framework for sustainability. Biodiversity is a component of the framework, wherein MPC seeks to protect ecosystems with high ecological importance, including wildlife habitat sites and wetlands.