Brian McTaggart is reporting that Valverde, LaHawk and Tejada are all listed as Type A Free Agents. Remember, if the Astros offer them arbitration, and they decline, and another team signs them, the Astros would receive a draft pick from that team plus a supplemental pick between the 1st and 2nd round.
If the Astros sign a Type A free agent (that has declined arbitration), they would lose a 2nd-round pick as their 1st round pick is protected, because they finished in the bottom 15 of the Major League teams.