Prior to texas governors were elected to two-year terms, with most being elected to a maximum of two consecutive two-year terms. since then the governor may be elected to unlimited four-year terms. 1972

Prior to 1974  Texas governors were elected to two-year terms, with most being elected to a maximum of two consecutive two-year terms.
After 1974, there was an amendment of the United states constitution that regulate this terms and it was change into the maximum of two terms with 4 years each.