In 1994 ? No Democrat has won the Governorship after her.
As for other statewide offices, the Dems actually did well in 1994, if only because there were no open races, all incumbents. Bob Bullock for Lt Governor (won reelection), Dan Morales for Attorney General (also won reelection), John Sharp for Comptroller (won reelection), Martha Whitehead for Treasurer (appointed by Ma Richards, won her first race, and then the office was abolished in 1996) and Garry Mauro for Land Commissioner (also won reelection).
Only Dubya running for Governor knocked off the sole incumbent in 1994 (Ma Richards) and Rick Perry as Agriculture Commissioner winning reelection. From 1991-95, excluding other offices such as Supreme Court and Railroad Commissioners, Perry was the only Republican in statewide office. In 1998, the Republicans won every one of the open statewide offices I cited above from the Democrats and have not lost them to date.
Thanks for the info!