Nevada Republican rules generally allocate delegates according to the share of the popular caucus vote, although candidates who poll less than 3.3% of the statewide vote are excluded. Based on the results as of 10 p.m., it appears that the following presidential candidates received delegates from Nevada: Donald Trump 13; Marco Rubio 7; Ted Cruz 7; Ben Carson 2; John Kasich 1.
Here is a detailed discussion of the Nevada Republican rules, from FrontloadingHQ.