Okla. Stat. tit. 67, § 67-46: Proceedings on hearing

If no demurrer or other pleading or answer shall, be filed by

the third day of said term, or by the day allowed by the order of

said court, as above provided, the petition may be taken as

confessed, and a decree entered according to the prayer of said

petition, upon proof of the facts stated in said petition, but if

any person shall file an answer, as aforesaid, to such petition, the

court may hear evidence, or order a reference to a referee or

special commissioner to take evidence and report, when the same

proceedings shall be had as on a reference to a referee or special

commissioner under and according to the practice in the courts of

this state. If the petition included more than one parcel of land,

and no demurrer or answer shall be filed as to some of said parcels

the court may enter a decree pro confesso as to those parcels as to

which no demurrer or answer shall be filed, and hear evidence, or

order a reference as to the remaining parcels.