1.   About two years ago, federal regulators required tank owners to start meeting rules designed to halt the growing pollution from leaky tanks.

2.   Environmental groups complain that many other states, like Texas, have failed to adequately track leaks and punish tank owners.

3.   Few would argue that the tank owner should be paid in exchange for preventing future oil spills.

4.   McCaskill recommended that the state work to ensure that all tank owners are in compliance with the new federal rules, then move them to private insurers.

5.   Much of that money has come from fees tank owners have to pay whether or not their tanks are leaking.

6.   Some states already have closed their funds and moved tank owners to private insurance.

7.   State and federal officials say the deadline caused tank owners to discover leaks when they dug up old tanks or installed new detection systems.

8.   Tank owners were asked to report any leaks and start costly cleanups.

9.   Tank owners pay premiums and, when their tanks leak, get financial help cleaning up pollution.

10.   The recommendations focused on increasing the costs for tank owners and concentrating efforts on pollution posing the greatest threats.