The Academy Award winning Bullock learned some of the money funding the campaign may have indirectly come from BP, Parade magazine reported.
The public service announcement touts the Women of the Storm's "Restore the Gulf" campaign, and asks people to sign a petition urging the government to fund the restoration of the Gulf of Mexico, Parade said.
But Bullock's publicist said "The Blind Side" actress, who lives part-time in New Orleans, wants out of the campaign after learning Women of the Storm is sponsored by America's Wetland Foundation, which has taken donations from oil companies, including BP, the magazine said.
Bullock spokeswoman Cheryl Maisel said, "At no time was she made aware that any organization, oil company or otherwise had influence over Women of the Storm or its message."
Celebrity Families of 2014 [PHOTOS]