Meanings of future cleanup in English

New Mexico may demand a surety bond to guarantee roughly $360 million in future cleanup work.

Taken together, Arch and Alpha have left roughly $900 million in future cleanup costs through self-bonding in Wyoming.

Coal companies are responsible for spent mines and they typically use cash, bonds or other financing to cover future cleanup costs.

Last week, Illinois told the Interior Department it would allow Peabody Energy Corp to continue to self bond about $100 million in future cleanup costs.

Of the roughly $2 billion in future cleanup costs facing Peabody Energy Corp, $1.47 billion of that is self-bonded and has no concrete backing.

Wyoming reached a similar deal with Alpha Natural Resources with $61 million promised to cover $411 million in future cleanup now covered by self bonds.

State and federal regulations normally require drillers to pay an up-front bond to cover future cleanups if they go belly-up.