Publisher: DC Comics (1977 - 1983)
Includes: Kamandi, The Last Boy On Earth #1,49, 50, and 59, The Warlord #37-39 and #42-47, and DC Comics Presents #61
Clipped from Wikipedia: The original OMAC series lasted for eight issues (1974-1975), canceled before the last storyline was completed, with Kirby writing an abrupt ending to the series. Later, towards the end of Kamandi (after Kirby had left that title), OMAC was tied into the back-story and shown to be Kamandi's grandfather. An OMAC back-up feature by Jim Starlin was started in issue #59, but the title was cancelled after the first appearance. It would later finally see print in Warlord, and a new back-up series would also appear in that title (#37-39, 42-47). OMAC made appearances as a guest alongside Superman in DC Comics Presents #61.
Fun Fact: OMAC (Buddy Blank, the One-Man Army Corps) is a superhero comic book created in 1974 by Jack Kirby and published by DC Comics. The character was created towards the end of Kirby's contract with the publisher, following the cancellation of Kirby's New Gods,and was reportedly developed strictly due to Kirby needing to fill his contractual quota of 15 pages a week.As envisioned by Kirby, OMAC is essentially Captain America set in the future, an idea Kirby had toyed with some years earlier while on staff at Marvel Comics, but had never realized.
Fun Fact: It was announced at New York Comic Con 2009 that OMAC will be released as a figure in the Justice League Unlimited toyline. NOTE: This happened, but it was NOT the Kirby OMAC; which made me sad.