OPINION
Thе trial court granted Vallejo’s Petition for Declaratory Judgment and held that the parties’ “Lease and Operating Agreement,” was a contract for the marketing of gasoline and did not constitute a leasehold
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estate in the premises. In our original opinion, we held that the agreement was a lease; therefore Pioneer was granted an exclusive right to vend gasoline on the premises.
See Pioneer Oil Co. v. Vallejo,
The issues remaining on remand are whether the trial court erred in finding that Vallejo and Conners had not waived the right to complain of the agreement and in finding that Vallejo and Connors are not estopped from changing the agreement thаt they have operated under since 1971.
We must first determine whether Pioneer has waived its right to complain on appeal. Vallejo asserts that Pioneer failed to plead waiver and estoppel and the facts essential to its existence in accordance with Tex.R.Civ.P. 94. Pioneer’s original answer alleged that Vallejo was “estopped by lach-es from raising such claim at this date after operating under the terms of the agreement”, and that Vallejo “waived any right to object to the lease agreement, since he and his predeсessors have operated under the same agreement for in excess of fifteen (15) years.” Vallejo leveled no special еxceptions to defects in Pioneer’s answer as required by Tex.R.Civ.P. 90, 91. Pioneer’s argument has been preserved for review on appeal.
Cf. Manufactured, Housing Management Corporation v. Tubb,
Waiver and estoppel are separate and distinct doctrines. Waiver has been frequently defined as the voluntary, intentional relinquishment of a known, existing right or intentional conduct inconsistent with intent to claim that right.
PGP Gas Products, Inc. v. Reserve Equipment, Inc.,
Estoppel, on the other hand, arises “where by fault of one, another has been induced to сhange his position for the worse.”
See Wirtz v. Sovereign Camp, W.O.W.,
In considering whether the trial court’s judgment was against the great weight and prepоnderance of the evidence, we will follow the well-established test set forth in
Pool v. Ford Motor Co.,
It is undisputed that this agreement has been in effect since 1971 and that Vallejo and apparently all of the previous owners of the convenience store have operated under and aсcepted rent under the agreement. In fact, Vallejo admits in his pleadings that he is bound by the terms of the agreement. Vallejo is merely seeking a declaration of the rights and obligations of the parties in order to determine whether he may install his own additional pumps on *930 the prоperty without violating the terms of the agreement. Vallejo has not sought to “change” the contract in any way and no breach has beеn alleged.
Pioneer operates two gasoline pumps on the property in accordance with the agreement and has invеsted more than $30,000 in that undertaking. There is no evidence of any other gasoline pumps on the premises. The record further reflects that Piоneer believed they could place those pumps anywhere on the property. On one occasion, Pioneer, upon rеquest from one of the previous convenience store owners, released a portion of the premises from the agreemеnt. Pioneer also believed that they would be the exclusive vendors of gasoline on the premises and that permitting another party to сome on the property to sell gasoline would destroy Pioneer’s investment. However, no provision in the agreement expressly grants Piоneer such an exclusive right. In fact, the agreement is silent on the issue of exclusivity to sell gasoline on the premises.
In regard to waiver, therе is no evidence that Vallejo or any of the previous owners intended to grant Pioneer the exclusive right to sell gasoline on the premises. In fact, the absence of such an exclusive vending provision in the agreement would indicate the contrary. Moreover, the record is devoid of any showing that Vallejo and his predecessors or Pioneer have previously attempted to place additionаl pumps on the premises. Although Pioneer did release a portion of the properly at some time since the agreement’s incеption, this simply shows that the parties were bound to the agreement. Moreover, it supports Pioneer’s proposition that they had the right tо place the two gasoline pumps anywhere on the premises; and thus, their consent was needed to release a portion оf the premises. It does not show that Pioneer has an exclusive right to sell gasoline on the premises. The evidence is insufficient to show that Cоnnors or any of Vallejo’s predecessors under the lease intentionally or knowingly waived any right existing under the contract or acted in any manner inconsistent with such right. Waiver requires some act, or at the very least, some manner of acquiescence by either words or silence. We refuse to imply such an exclusive right to sell gasoline in a written agreement merely because the parties have operаted under the agreement for a long period of time.
Insofar as estoppel is concerned, there is no evidence that Vallejo or any of the previous owners made any false representation or concealed any material facts that Pioneеr has relied on to its detriment. Both parties were aware of the agreement’s existence and the provisions therein. Moreover, “еstoppel by silence” only arises where a person is under a duty to speak, but refrains from doing so and thereby leads another to act in reliance on a mistaken understanding of the facts.
See Williams v. Stansbury,
The judgment of the trial court is AFFIRMED.
