KANSAS CITY, Kan. — Gov. Sam Brownback created the Office of the Repealer to recommend the elimination of out-of-date, unreasonable and burdensome state laws that build up in any bureaucracy over time.

For gay men and lesbians, there seemed one particularly obvious candidate: Kansas Statute 21-3505.

That would be the “criminal sodomy” statute, which prohibits same-sex couples from engaging in oral or anal sex. The law was rendered unenforceable nearly a decade ago by a United States Supreme Court ruling, but it remains enshrined in the state’s legal code.

But on Friday, when Mr. Brownback, a conservative Republican, released a list of 51 laws to recommend to the Legislature for repeal, the sodomy statute was not among them.

The decision, despite public and private lobbying, has angered gay leaders here. “We were pretty much the first in line with our request to have this unconstitutional ban on gay and lesbian relations repealed,” said Thomas Witt, chairman of the Kansas Equality Coalition.