Okla. Stat. tit. 12A, § 12A-1-9-512

AMENDMENT OF FINANCING STATEMENT

(a) Subject to Section 1-9-509 of this title, a person may add

or delete collateral covered by, continue or terminate the

effectiveness of, or, subject to subsection (e) of this section,

otherwise amend the information provided in, a financing statement

by filing an amendment that:

(1) identifies, by its file number, the initial financing

statement to which the amendment relates; and

(2) if the amendment relates to an initial financing statement

filed or recorded in a filing office described in paragraph (1) of

subsection (a) of Section 1-9-501 of this title, provides the file

number and date that the initial financing statement was filed or

recorded, and the information specified in subsection (b) of Section

1-9-502 of this title.

(b) Except as otherwise provided in Section 1-9-515 of this

title, the filing of an amendment does not extend the period of

effectiveness of the financing statement.

Oklahoma Statutes - Title 12A. Uniform Commercial Code Page 114

(c) A financing statement that is amended by an amendment that

adds collateral is effective as to the added collateral only from

the date of the filing of the amendment.

(d) A financing statement that is amended by an amendment that

adds a debtor is effective as to the added debtor only from the date

of the filing of the amendment.

(e) An amendment is ineffective to the extent it:

(1) purports to delete all debtors and fails to provide the

name of a debtor to be covered by the financing statement; or

(2) purports to delete all secured parties of record and fails

to provide the name of a new secured party of record.