$99.6 million dollar bill from feds adds to the $122 million already billed and paid.

Private parties that make their living off of the Gulf of Mexico's fishing and tourism industry are not the only ones filing claims and sending bills to BP for damages caused by the biggest oil spill in U.S. history, the United States government is also getting in on the action.

The Obama Administration Tuesday sent a bill of $99.6 million to BP and other "responsible parties" including Anadarko Petroleum and Transocean for response and recovery operations relating to the BP/Deepwater Horizon Oil Spill.

According to a press release from the unified federal response:

As a responsible party, BP is financially responsible for all costs associated with the response to the spill, including efforts to stop the leak at its source, reduce the spread of oil, protect the shoreline and mitigate damages, as well as long term recovery efforts to ensure that all individuals and communities impacted by the spill are made whole.

This is the fourth bill the Administration has sent to date. BP and other responsible parties have paid the first three bills, totaling $122.3 million, in full.

Photo: U.S. Coast Guard Petty Officer 1st Class Matthew Belson