'Buckwild' -- TV Producers Paying for Shain Gandee's Funeral

The two production companies behind the MTV reality show "Buckwild" have offered to pay for all of Shain Gandee's funeral expenses, TMZ has learned.

Parallel Entertainment CEO J.P. Williams -- who produces the show with Zoo Productions -- tells us, "Shain was a great kid with a big heart who had endless love for his mom and dad." He adds, "I am from West Virginia and this show reminded me of how I grew up."

A public service for Shain will be held this Sunday.

As for the donation websites that have been raising money to help pay for the funeral -- we're told that money will now go toward expenses incurred by Shain's family during the recovery effort.

We're told any remaining money will go towards the funeral of the other two men that were killed, including Shain's uncle.

As we reported, 21-year-old Shain was found dead yesterday morning inside his truck, which had stalled out submerged in mud while off-roading. Shain and the two other men died from carbon monoxide poisoning.