In this diversity case, the district court held that appellee Marshall Exploration, Inc. (Marshall) was not in breach of a contract to purchase the working interest in oil and gas leases from appellants Pride Exploration, Inc. and others (Pride). The court found that Pride had failed to deliver the interest as required by the contract. Upon timely appeal by Pride, we reverse and remand for a new trial.

Pride had agreed to deliver the full 100 percent of the working interest in certain Texas oil and gas leases to Marshall in exchange for $48,487.50. The leases were known as the “Winston Taylor leases.” The working interest in the leases was held jointly by numerous parties, including the Lexco 81-2 Drilling Program (Lexco) with 20.375 percent, Latham Exploration Company with 2 percent, and James Latham with 2 percent. Marshall and Pride agreed that one working interest owner, E.S. Boase, would secure assignments from the other owners and would then convey the entire interest to Marshall.

This case arose as a result of Marshall’s refusal to accept the leases and to pay the purchase price for them. Pride brought a suit for breach of contract seeking damages of $48,487.50. The district court held that a contract between the parties existed, but that Marshall had justifiably refused to perform because Pride had failed to deliver the required 100 percent of the working interest. The district court’s holding was based upon a finding that as part of the collecting of the 100 percent interest a pro-ported assignment of Lexco’s working interest to Boase was not adequate to convey marketable title. 1 The court made its rul *866 ing in the middle of the trial, determining that no further testimony was necessary once the Lexco assignment was declared invalid. On appeal to this Court, Pride urges that the district court erred in holding that the Lexco assignment did not transfer marketable title under Texas law.

Lexco is a limited partnership of which Latham Exploration and James Latham are general partners. The partnership agreement provided that Lexco’s property could be conveyed solely by the “program operator.” At all relevant times, Latham Exploration was Lexco’s designated program operator and was in bankruptcy. William Sandoz was the trustee-in-bankruptcy of Latham Exploration.

The assignment at issue, Appendix A, showed “Lexco by James A. Latham, General Partner” as the grantor of the working interest. The instrument contained Lexco’s signature “by James A. Latham, General Partner, and INDIVIDUALLY.” Additionally, Latham Exploration’s name was typed below James Latham’s signature and was signed by Sandoz. Nothing in the instrument indicated that Latham Exploration was signing in its capacity as Lexco’s program operator, or in any other way specifically connected Latham Exploration with Lexco.

Appellee claims two defects in the Lexco assignment. First, the granting clause named “Lexco by James A. Latham, General Partner” as the assignor. As both parties agree, James Latham had no authority under the limited partnership agreement to convey Lexco’s interest because he was not the “program operator.” Lexco, however, was properly named as the grant- or. The fact that James Latham was erroneously identified as the party transferring the interest on Lexco’s behalf was merely surplusage, and did not affect the validity of the assignment. Terry v. Zaffran, 483 So.2d 526, 527 (Fla.App. 1986).

Second, the document failed to recite that Sandoz, the trustee-in-bankruptcy of Latham Exploration Company, was conveying Lexco’s interest in his capacity as Lexco’s program operator. 2 Ideally, the signature line should have contained the word “by” in front of Latham Exploration Company’s name and should have disclosed the status of Latham Exploration as “program operator.”

Surprisingly, we have discovered virtually no case law, including Texas cases, dealing with the question of whether a conveyance, properly naming the grantor and signed by the proper party, is nevertheless invalid because the signer failed to indicate the capacity in which he signed. Our review of the few applicable cases convinces us that it did not render the title unmarketable for the document to lack a specific statement that Sandoz as trustee-in-bankruptcy for Latham Exploration Company held the power to convey the Lexco interest.

Technical words and phrases are not controlling in deeds. Atlantic Rich-field Co. v. Exxon Corp., 663 S.W.2d 858, 867 (Tex.App. — Houston 1983), aff'd 678 S.W.2d 944 (Tex. 1984). If a grantor and grantee can be determined from the whole of the instrument, and the document is signed and acknowledged by the grantor, then the document accomplishes a legally effective conveyance. Id. The cases found indicate that failure of a signer of a real estate conveyance to indicate the capacity in which he is signing the document does not render the title unmarketable. Ford v. Warner, 176 S.W. 885, 888 (Tex.Civ.App. 1915); Odell v. Kennedy, 26 Tex.Civ.App. 439, 64 S.W. 802 (1901, writ ref’d); Bennett v. Virginia Ranch & Cattle Co., 1 Tex.Civ.App. 321, 21 S.W. 126, 128 (1892). The rule was stated by a Kentucky court in the context of a corporate real estate conveyance as follows: “Regardless of the form of the signature, the body must show that it is the act of the corporation. This *867 done, it is sufficient if it is signed by the proper officer or officers, with or without the name of the office held by the signer.” Christian v. Johnson, 556 S.W.2d 172, 173 (Ky.Ct.App. 1977). Marshall has cited no authority for the proposition that a failure to identify Latham Exploration as Lexco’s “program operator” on the document prevented a transfer of marketable title. 3 We hold that the assignment at issue was sufficient under Texas law to transfer Lexco’s working interest to Boase.

The district court ruled for Marshall in the middle of the trial when it determined that no further testimony was necessary because Lexco’s assignment was invalid. Marshall asserts that it had additional defenses to this action which were never presented because of the truncated nature of the proceedings. In view of our holding that the Lexco assignment was effective, we remand for a new trial.

REVERSED and REMANDED.

APPENDIX

ASSIQWEHT or OIL, gas add miheral leases IRE STATS or TEXAS

I>CH ALL HEX nr THESE PRESEHTS:

COUNTY OF HARRISON :

'James A. Latham, General Partner

That loco fli-? wmj.niff PwocBAM^hy .whose address is ¿-<3 „

ftfl ^ 71101 . hereinafter called "Assignor"

la the owner of As oil, gas and ainsrsl leseas dsscribed below, hereinafter called "Subject lesees*»

NOW THEREFORE, for the considerstlea of ORE HUNDRED DOLLARS ($100.00) sod other good, valuable end adequate consideration, the receipt of vbicb is I hereby acknowledged by Assignor, the said Assignor does hereby grant, bargain, sell and convey all of his rights, title and interest In the Subject Leases hereinafter described to E. S. BOASE, vhoee welling address la Post Office Box 323, Carthage, Texas 75633, hereinafter called "Assignee".

(1) Lessor: Lasase: Date? Recorded:

(2) Lessor: Lessee:

Date:

Recorded:

Vlnateo Taylor at ux E. S. Boss#

August 27, 1981

Voluse 946, Page 289

Deed Records of Harrison County, Texas

Travis Peak Royalty Corp.

B. S. lesas

September 28, 1981

Volune 946, Page 292

Dead Records of Barrison County, Texas

The Assignor wakes no warranty regarding the title to the assigned premises cither in law or equity, except that Assignor warrants against anyone asserting an adverse claim of title to the Subject Leases that arises by, through, or under any act of Assignor; but this Assignment is made with trans- *868 far and subrogation rights and actions of warranty which Assignor aay have as to the Interest assigned.

This instrunent shall be binding upon and Inure to the benefit of Assignor and Assignee and ehelr respective heirs* successors and assigns.

This Instrument is executed this ITday of April* 1984.