Compare up to 5 members side by side
| Measure | Mark ChapmanRHouse 12 | Clay StairesRHouse 66 |
|---|---|---|
| Seat | House District 12 | House District 66 |
| Party | Republican | Republican |
| Counties | Wagoner | Osage, Tulsa |
| Leadership | — | — |
| Committees | 6 | 5 |
| Effectiveness score | 0.64 | 0.48 |
| Chamber rank | 61 of 99 | 71 of 99 |
| Bills & JRs authored | 25 | 36 |
| … passed committee | 10 | 11 |
| … passed own chamber | 6 | 9 |
| … passed both chambers | 5 | 1 |
| … became law | 5 | 1 |
| Carried in other chamber (law) | 2 (1) | 5 (2) |
| Bills coauthored | 29 | 41 |
| Budget-process measures (not scored) | 0 | 0 |
| Floor roll calls | 1932 | 1932 |
| Missed votes | 156 (8.1%) | 221 (11.4%) |
| Party unity (contested votes) | 84.7% | 83.4% |
| Top topics | Budget & taxes (9); State government & agencies (5); Criminal justice & public safety (2) | Schools (K–12) (8); Transportation & vehicles (6); Budget & taxes (5) |
| Lobbyist-reported expenditures, 2025–26 | 108 items, $5,089 | — |
| Capitol office | Room 300 | Room 347 |
| Capitol phone | (405) 557-7388 | (405) 557-7390 |
Effectiveness figures follow the published formula. Campaign-finance figures are not included in comparisons.
Read with care. This is a transparent count of how far a member's own bills went, not a judgment of the member's work. It does not weigh a bill's importance, and it misses amendments, conference work, constituent service and blocking bad bills. Leadership files many shell bills that never move; members elected mid-term had less time; coauthors are read from action text and may be incomplete. Data: Open States roll calls and actions (copied Oct. 1, 2026); official records are on oklegislature.gov.
Sources for this page
- Open States bulk data (public domain dedication): https://open.pluralpolicy.com/data/ — copied Sep 30, 2026
Bill, action and vote data from Open States bulk data (public domain dedication; attribution appreciated). Official bill text and votes are linked on oklegislature.gov, not copied.
Copied from public pages of the Oklahoma House of Representatives and the Oklahoma State Senate. Neither OK Capitol Guide nor this information, as presented here, is endorsed by the Oklahoma House of Representatives or the Oklahoma State Senate.