The acquisition of permits for construction, water withdrawal, and waste disposal operations is subject to laws and regulations that restrict or prohibit construction or drilling activities in sensitive areas such as wetlands, wilderness areas, and areas containing endangered or threatened species or their habitats. These regulations also require investigatory and remedial actions to mitigate pollution conditions arising from Greylock Productiona' operations and attributable to former operations, as well as reclaim and enforce obligations to reclaim and abandon well sites impoundments and pits.