rells’ version of his alleged agreement and have found it in the testimony of Sorrells himself. In response to a question from his own counsel as to what Coffield said to him about buying the Butler land, Sorrells answered, “He said ‘Do you think you could sell any part of the royalty and clear that place’ and I said ‘Yes, I believe I can’ and he said ‘If you think you can sell part of that royalty, up to half, so we would have half left and clear, I will pay the $1200.00 for that piece of land and then what is left we will split it jointly, own it jointly.’ ” He further said that Coffield complained, some time after buying the land, because the royalty had not been sold; that Coffield said, “Fred, I have carried this a long time and I am not going to split with you now”; that, in reply, “I told him I thought I was still entitled to my part of that if I sold that royalty.’1 Sorrells testified that after this attempted repudiation by Coffield, he, Sor-rells, made an affidavit covering his claim to the land and filed it for record. That affidavit was introduced in evidence. In it appears this recitation: “That it was agreed between said parties that said land would be purchased and the deed taken in the name of C. W. Coffield but that said property should belong to the said C. W. Coffield and this deponent jointly ; that-itwas further understood between said parties that some interests of royalty or leases would be sold thereon and the purchase price advanced by the said C. W. Coffield repaid, after which the parties would own jointly and participate on an equal basis.” When asked, on cross-examination, if the quoted part of the affidavit meant that the land, “after Mr. Coffield zvas paid out,, would be half yours and half his,” Sorrells replied, “When he received his money back."* (Italics ours.)
Turning to the transcript, we find that Sorrells interposed no exception to the court’s charge and requested no special issues. In that situation and evidently because of Sorrells’ testimony, the first special issue submitted to the jury was: “Do you find from a preponderance of the evidence that an agreement was made by and between W. F. Sorrells and C. W. Coffield to the effect that C. W. Coffield furnish the purchase price of $1200.00 to purchase the 120 acres of land in question from H. C. Butler upon condition that as and when a part of the minerals thereunder were sold sufficient to repay the said C. W. Coffield therefor and that such remaining interest in said land, if any, would be owned jointly by W. F. Sorrells and C. W. Coffield?” The jury answered “Yes.” On other issues the jury found that the agreement was made before the Butler deed was executed; that Sorrells procured the Butler deed to Coffield pursuant to the agreement; that the agreement was never revoked by mutual consent of the parties; that Sorrells effected a sale of 30 acres of minerals under the land to a third party for $1200; and that the agreement was not conditioned on Sor-rells “immediately and without waiting future oil development procuring a sale of a part of the minerals so as to reimburse C. W. Coffield." (Italics ours.)
Thus it is clear that Sorrells chose to try his case on the. theory that he was to become a “joint owner” of the land "as and when” sufficient mineral interest was sold to reimburse Coffield, which, as Sorrells testified, might happen “in 10 years or ten days or twenty years or 20 days.” So Sorrells’ rights here must be measured within the limits which he thus set for himself. Safety Casualty Co. v. Wright, 138 Tex. 492, 160 S.W.2d 238, 245, and authorities there cited.
That portion of the English Act for the Prevention of Frauds and Perjuries declaring that all trusts in land must be evidenced by writing signed by the party declaring the trust was not included in our Statute of Frauds, Art. 3995, R.S.1925. Therefore, such trusts may be proved by parol in Texas. James v. Fulcrod, 5 Tex. 512, 55 Am.Dec. 743, is an early illustrative case.
However, we impose definite limitations.
Allen v. Allen, 101 Tex. 362, 107 S.W. 528, holds that the transaction cannot be proved if it conflicts with those sections of the Act which we did adopt. Other cases say that the transaction must be in harmony with general principles of law. In other words, a trust may arise only from an enforceable contract. Whittenburg et al. v. Miller, 139 Tex. 586, 164 S.W.2d 497. '
So, where one Peaden claimed he had taken title to certain minerals from one Dr. Clayton in trust for one Ancell and in support thereof testified, “George. B. Ancell came to me and asked me to secure it for him upon the understanding that he would pay me, reimburse me, whatever amount I was out if it was within reason" this court said: “Under our view not only was the