§21-51.1.

§21-51.1.
   
   A. Except as otherwise provided in the Elderly and Incapacitated
   Victim's Protection Program, every person who, having been convicted
   of any offense punishable by imprisonment in the State Penitentiary,
   commits any crime after such conviction is punishable therefor as
   follows:
   
   1. If the offense of which such person is subsequently convicted is
   such that upon a first conviction an offender would be punishable by
   imprisonment in the State Penitentiary for any term exceeding five (5)
   years, such person is punishable by imprisonment in the State
   Penitentiary for a term not less than ten (10) years.
   
   2. If such subsequent offense is such that upon a first conviction the
   offender would be punishable by imprisonment in the State Penitentiary
   for five (5) years, or any less term, then the person convicted of
   such subsequent offense is punishable by imprisonment in the State
   Penitentiary for a term not exceeding ten (10) years.
   
   3. If such subsequent conviction is for petit larceny, the person
   convicted of such subsequent offense is punishable by imprisonment in
   the State Penitentiary for a term not exceeding five (5) years.
   
   B. Every person who, having been twice convicted of felony offenses,
   commits a third, or thereafter, felony offenses within ten (10) years
   of the date following the completion of the execution of the sentence,
   shall be punished by imprisonment in the State Penitentiary for a term
   of not less than twenty (20) years. Felony offenses relied upon shall
   not have arisen out of the same transaction or occurrence or series of
   events closely related in time and location. Nothing in this section
   shall abrogate or affect the punishment by death in all crimes now or
   hereafter made punishable by death.
   

   § 21-51.2. Second and subsequent offenses 10 years after completion of
   sentence.
   
   No person shall be sentenced as a second and subsequent offender under
   Section 434 of this act, or any other section of the Oklahoma
   Statutes, when a period of ten (10) years has elapsed since the
   completion of the sentence imposed on the former conviction; provided,
   said person has not, in the meantime, been convicted of a misdemeanor
   involving moral turpitude or a felony.