Question: What was the release date of the final album produced by Creedence Clearwater Revival?

Context paragraphs:
Creedence Clearwater Revival (album): Creedence Clearwater Revival is the debut studio album by the American rock band Creedence Clearwater Revival, released in 1968.

John Fogerty (album): John Fogerty is the second solo studio album by former Creedence Clearwater Revival vocalist/guitarist John Fogerty, released in 1975.  It was released by Asylum Records in the United States and Fantasy Records internationally.  As with the Creedence Clearwater Revival records, the album consists of a mix of originals and cover songs.  Although the album is eponymously titled, Fogerty himself refers to it as "Old Shep"; Shep was the name of his dog, who appears on the cover with him.

Creedence Clearwater Revival: Box Set: Creedence Clearwater Revival: Box Set is a box set by Creedence Clearwater Revival, released in 2001.  It contains all of their complete studio albums, two complete live albums, and material recorded by the band under their previous names "The Golliwogs" and "The Blue Velvets".  In November 2013 the box set was reissued with different artwork.  This box set spans their career, and contains all of their complete materials.

Someday Never Comes: "Someday Never Comes" is a song by Creedence Clearwater Revival from their album "Mardi Gras" released in 1972 and written by the frontman John Fogerty.  The song made it to #25 in May 1972 with Doug Clifford's "Tearin' up the Country" released as the B-side.  This is the final song for Creedence Clearwater Revival before they officially broke up in 1972.

Mardi Gras (album): Mardi Gras is the seventh and final studio album by American band Creedence Clearwater Revival, released on April 11, 1972.  The group disbanded after this album was released.

Creedence Clearwater Revisited: Creedence Clearwater Revisited is an American rock band formed in 1995 by two former members of Creedence Clearwater Revival – a much more well-known band with a very similar name.  It is known for playing the music that was originally made famous by Creedence Clearwater Revival.  The two common band members are Stu Cook (bass) and Doug "Cosmo" Clifford (drums).

Doug Clifford: Douglas "Cosmo" Clifford (born April 24, 1945 in Palo Alto, California) is an American drummer, best known as a founding member of Creedence Clearwater Revival.  After the group dissolved in the early 1970s, Clifford released a solo album and later joined CCR bassist Stu Cook in the Don Harrison Band.  In 1995, Clifford and Cook formed the band Creedence Clearwater Revisited, performing live versions of Creedence Clearwater Revival songs.

Creedence Clearwater Revival: Creedence Clearwater Revival, often informally abbreviated to Creedence or CCR, was an American rock band active in the late 1960s and early 1970s.

Creedence Clearwater Revival Covers the Classics: Creedence Clearwater Revival Covers the Classics is a compilation album by Creedence Clearwater Revival.  Released in 2009, the album contains cover versions of songs as recorded by the band.

The Best of Creedence Clearwater Revival: The Best of Creedence Clearwater Revival is a compilation album by American rock band Creedence Clearwater Revival, released in 1977.  The album features all the tracks of Chronicle which was released a year earlier in 1976, as well as "Good Golly Miss Molly", "Born on the Bayou", "Cotton Fields", "Hello Mary Lou", "The Midnight Special", "Walk on the Water", and "Night Time Is the Right Time" which would appear on the 1986 release "Chronicle, Vol.  2", and "Bootleg" which does not appear on either volume.

Supporting paragraphs: Mardi Gras (album) Creedence Clearwater Revival
Answer: April 11, 1972