Environmental protection laws are heavily enforced in the Marcellus Shale by federal, state and local authorities governing natural gas exploration and production operations by Greylock Production. This includes obtaining a permit before carrying out drilling water withdrawal or waste disposal operations, limiting construction or drilling activities in sensitive areas such as wetlands, wilderness areas, and areas containing endangered or threatened species or their habitats. Failure to comply with these laws and regulations may result in significant environmental costs and liabilities.