Watch CBSN Live

Romney wins Wyoming, AP reports

In this March 9, 2012 photograph, Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks at the Mississippi Farmers Market as Gov. Phil Bryant, right, listens in Jackson, Miss. Romney, endorsed by the state's top elected Republican officers, seeks to capture the state's primary election on Tuesday, March 13. (AP Photo/Rogelio V. Solis) AP

UPDATED 8:26 p.m. ET

(CBS News) Former Massachusetts Gov. Mitt Romney has won Wyoming's county conventions in the race for the Republican presidential nomination, the Associated Press reported Saturday.

The Wyoming win gives him additional delegates in the race to be the first Republican candidate to garner 1144 of 2286 delegates needed to become the party's choice to run against President Obama in November. Just 12 delegates were at stake in Wyoming, and Romney won at least six, his campaign said.

Romney also won a number of delegates in weekend island contests, including the Virgin Islands, the Northern Mariana Islands and Guam.

Rival Rick Santorum took the most delegates in a single race on Saturday when he won 33 delegates in Kansas, though the former Pennsylvania senator remains behind front-runner Romney. And Romney campaign spokeswoman Andrea Saul noted that the cumulative total of the small contests amounted to more delegates for Romney than for Santorum.

The Romney campaign said it won a total of 32 delegates Saturday, including some for his second-place finish in Kansas and for winning three island races.

Since January, Romney has amassed more than 400 delegates while Santorum has slightly more than 200 delegates. Former House Speaker Newt Gingrich has just under a hundred and Texas Rep. Ron Paul has about 40.

Complete Republican primary results
CBS News estimated Republican delegate scorecard

There were 15 county conventions in Wyoming Saturday to pick six convention delegates to add to another half dozen that had been chosen in recent days, the AP reported.

Next up on the calendar are Alabama and Mississippi, where Santorum and former House Speaker Newt Gingrich are fighting to be the conservative alternative to Romney.

While Romney is slowly amassing delegates, he has not knocked out his rivals and could make it all the way to the nomination convention in Tampa Bay without the necessary 1144 delegates.