Paul Oldfield, born in Macclesfield, Cheshire, North West England, is better known by his stage name Mr. Methane. He is a British flatulist or "professional farter" who started performing in 1991; he briefly retired in 2006 but re-started in mid-2007; he claims to be the only performing professional flatulist in the world. He has worked on railroads before focusing on his flatulence performances.

According to When Will I Be Famous? (2003), a BBC book on British variety acts, Oldfield discovered his ability at the age of fifteen when practising yoga. The next day he performed twenty rapid fire rasping farts in under a minute for a group of his friends. It became so popular he made it into a regular event.

In the late 1980s, Oldfield turned professional, performing as an opening act for the Macclesfield-based bands The Screaming Beavers and The Macc Lads. The latter wrote a song about him on their album The Beer Necessities. Oldfield subsequently traveled to New York, USA, where he appeared as a guest on the Howard Stern Show as the "British Blaster". While in New York, Mr. Methane also performed a series of farts on Broadway.