US energy secretary Rick Perry discusses manure in fake interview with Russian pranksters

US Energy Secretary Rick Perry optimistically discussed expanding American coal exports to Ukraine and using pig manure as a power source during a lengthy phone call this month with a Russian prankster who Perry thought was Ukraine's prime minister.

Perry actually was talking with comedians known in Russia for targeting celebrities and politicians with audacious stunts, Energy Department spokeswoman Shaylyn Hynes said in a written statement.

Pranksters Vladimir Krasnov and Alexei Stolyarov are sometimes called the "Jerky Boys of Russia," after an American duo who put out recordings of their prank phone calls in the 1990s. They have made faux calls to singer Elton John, who thought he was speaking to Russian President Vladimir Putin, and others.

"These individuals are known for pranking high-level officials and celebrities, particularly those who are supportive of an agenda that is not in line with their governments. In this case, the energy security of Ukraine," Hynes said.

During the 22-minute call on July 19, Perry, whose department oversees the US nuclear weapons programme, discussed a range of topics in a business-like tone.

The only topic that would have raised eyebrows was a statement the “Ukrainian prime minister” made about a new biofuel invented by Ukrainian President Petro Poroshenko, the Pravda Report newspaper reported.

Mr Perry said he’d like to get more information about the “scientific development”, which would involve fuel being made from a mix of home-brewed alcohol and pig manure.

Also discussed were sanctions against Russia and helping Ukraine develop oil and gas.

Mr Perry said the Trump administration opposes Nord Stream 2, a Russian project to bring natural gas to Europe across the Baltic and that US technology could help Ukraine develop gas.

"Giving Ukraine more options with some of our technology is, I think, in everyone's best interest with the exception of the Russians, but that's OK," he said.

Mr Perry also discussed the Paris climate accord and coal exports on the call.

“I hope that stepping away from the Paris accord will not have any negative impact with our relationship with the Ukraine,” Perry said. “We tried to divorce the politics from this and really just let our record stand, one that I’m very proud of.”

The call, first reported by E&E news, was recorded and posted online. 

It happened about a month after Perry met with Mr Poroshenko and his delegation at the Energy Department.

President Donald Trump said last month that Washington plans to offer Ukraine more coal exports from the United States because the eastern European nation's industrial sector has difficulty securing coal from separatist-held regions.

It is unclear how the United States would bring more coal to Ukraine but Perry hinted on the call that the Commerce Department was working on it.

"The coal conversation at this particular point in time is with (Secretary of Commerce Wilbur Ross) and I full well suspect it will go forward," he said on the call.

News of the call came the same day the US House of Representatives voted overwhelmingly to impose new sanctions on Russia.