This case, on appeal from a final judgment of the Circuit Court of 'Lewis County, involves a civil action in which Margaret A. Shearer, the appellant, seeks to recover from Allegheny Land and Mineral Company, the appellee, which hereafter may be referred to in this opinion merely as Allegheny, the one-eighth gas royalties which she alleges are due under an oil and gas lease entered into by the parties on March 6, 1959.
Margaret A. Shearer, hereafter sometimes referred to in this opinion as Mrs. Shearer, has been the owner and the occupant since 1918 of approximately 75 acres of land situate in Freemans Creek District, on the waters of Leading Creek in Lewis County, West Virginia. On March 6, 1959, she and her husband entered into an agreement with Allegheny Land and Mineral Company by which they granted to Allegheny the “exclusive right to drill, operate for and produce oil and gas” on the tract of 75 acres, more or less, owned by Mrs. Shearer. It is the alleged breach of that agreement by Allegheny which is the basis of this action.
The land owned and leased by Mrs. Shearer to Allegheny was at one time a part of a tract of 246 acres, more or less, owned by Charles L. Bush and his wife. On November 26, 1903, Bush and his wife executed a lease of the entire tract to Hope Natural Gas Company, which may hereafter be referred to in this opinion as Hope, for the purpose of oil and *618gas development. The lease was for a term of ten years and for “as long thereafter as oil or gas, or either of them, is produced from said land”. By the terms of the lease agreement, Hope agreed to furnish to the lessors a specified maximum volume of free gas and, in addition, to pay them $75.00 “each three months in advance for the gas from each and every gas well drilled on said premises, the product from which is marketed and used off the premises, while the gas from said well is so marketed and used.” This oil and gas lease was duly recorded and the trial court found that the lease to Hope “has been in full force and effect since the date of its execution on November 26, 1903, up to the present time.” The fact that the Hope lease is valid and subsisting has not been challenged and is, therefore, not in issue in this case.
After the execution of the lease to Hope, Mrs. Shearer, through a series of mesne conveyances, obtained title by a deed of conveyance to 75 acres of the surface of this original 246-acre tract and title to the oil and gas under approximately 34 acres thereof. On March 6, 1959, Mrs. Shearer leased these 75 acres, more or less, to Allegheny for the purpose of oil and gas production. Under the lease agreement, the lessor was entitled to one-eighth royalty on all of the gas produced and marketed from the leased premises.
By terms of the lease from Mrs. Shearer to Allegheny, it was agreed that it should remain in force for five years “and as long thereafter as the said land is operated by the Lessee in the search for or production of oil or gas with the extension of term payment of rentals as hereinafter set forth.” The lease also granted to Allegheny incidental rights to store gas on the premises or by introducing the same into any sand or sands under the land, together with rights-of-way for pipe lines, structures, plants, houses, buildings for employees, tanks, stations, houses for gates, meters and regulators “for the production and transportation of oil and gas, and for the storage of any gas therein; * * *.” The lease contains the following provisions:
“Lessor hereby warrants generally the title to all oil and gas in and under the land hereinbefore *619described and covenants that he will forever warrant and defend the leasehold estate hereby demised unto Lessee against the lawful claims and demands of all persons whomsoever, and that the Lessee shall have the exclusive, full, free and quiet possession of the said described premises for the purposes and during the term herein set forth.
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“In the event of notice of any adverse claim to the leased premises, or to any part of the rentals or royalties, the Lessee may withhold payment of the same until the ownership is determined by compromise or by final decree by a Court of competent jurisdiction.”
Prior to entering upon the premises, Allegheny caused the title of the leased premises to be examined and the examining attorney raised the question whether the premises leased by Mrs. Shearer were included in the 246-acre lease to Hope executed by Charles L. Bush and his wife. Upon the assurance of the “Lewis County Engineer” that the leased premises were not included in the Hope lease, the lessee entered upon the property and commenced drilling a well.
On September 7, 1959, when Allegheny had drilled to a depth of 750 feet, Hope notified Allegheny that it was trespassing and demanded that the drilling be stopped. Allegheny ceased its drilling operations at once. On September 8, 1959, Hope verbally agreed to assign to Allegheny its leasehold right as to the tract of 34.48 acres upon which the well was being drilled. The written assignment from Hope was executed and delivered to Allegheny on September 16, 1959, but was dated August 1, 1959, to evidence Hope’s authorization of Allegheny’s having gone upon the land on August 12, 1959.
On September 19, 1959, gas was discovered by Allegheny in paying quantities and drilling ceased. This was eleven days after Hope verbally agreed to make the assignment, and three days after the execution of the written assignment. On or about September 20, 1959, Mrs. Shearer was notified by officials of Allegheny of the negotiations with Hope and *620that she would receive only the $300.00 rental per well as provided for in the Hope lease. This, we believe, was tantamount to notice to Mrs. Shearer by Allegheny that thereafter it was occupying the premises and continuing its drilling pursuant to the assignment to it of Hope’s paramount rights under its 1903 lease. On September 24, 1959, the well was fractured and gas was turned into the line on October 16, 1959.
On February 20, 1965, Margaret A. Shearer instituted an action in the Circuit Court of Lewis County against Allegheny. On May 7, 1965, the plaintiff filed her motion for summary judgment. The motion for summary judgment was submitted to the trial court for decision on the pleadings, exhibits, affidavits, stipulations and upon briefs and oral argument of counsel. In entering summary judgment for the defendant, the trial court held that the plaintiff and defendant were not landlord and tenant when the assignment was made, particularly when gas was discovered in paying volume, and that, regardless of the capacity in which Allegheny occupied the leased property, it was constructively evicted therefrom by title paramount in Hope and, being so evicted, Allegheny then had the right to take such assignment and to attorn to Hope and also to minimize damages.
In its written opinion, the trial court found that in 1918, “Margaret A. Shearer questioned the existence of a valid lease on her land and was advised by the Hope Natural Gas Company that it had a valid lease on the land owned by her dated November 26, 1903.” A letter written to her in 1918 by an official of Hope has been made an exhibit and a part of the record. The body of the letter is as follows:
“Dear Madam:
“Referring to your letters of Aug. 27 and Sept. 6th, offering to lease to this company tract of land conveyed by C. L. and Allie V. Hush to Ralph Moneypenny and wife, and by Moneypenny to you; would state that the tract in question was conveyed to Ralph Moneypenny by C. L. Bush on April 23, 1908, and we have a lease covering this tract and *621others, dated Nov. 26, 1903 (and not Sept. 1908, as stated in your letter). Therefore, we have a good and valid lease on the tract owned by you.”
The record does not disclose that Mrs. Shearer questioned or disputed the assertion made to her in the letter quoted above or that she undertook at any time in the trial court to prove that her land was not, in fact, covered by the Hope lease. We believe that we are warranted in asserting from the briefs and oral argument of counsel, that she, at least tacitly, admits that the Hope lease covers the land owned by her. Her claim seems to be in the nature of confession and avoidance in relation to the Hope lease and the assignment from Hope to Allegheny.
The essence of the decision of the trial court was to require Allegheny to pay Mrs. Shearer at the rate of $300.00 per well as was required by the Hope lease rather than at the rate of a one-eighth royalty as provided in the lease from Mrs. Shearer to Allegheny. The flat well rentals provided for in the Hope lease have been paid regularly by Allegheny, and “it was agreed by exchange of letters between counsel representing plaintiff and defendant, * * * that she cash same without prejudice to her position in this civil action.”
On appeal to this Court, the case was submitted for decision upon the record made in the trial court and upon briefs in writing and oral argument of counsel. It is not contended that the case involves any genuine issue of any material fact.
The primary issue before this Court for decision is whether the lease between Mrs. Shearer and Allegheny created a legal relationship between the parties of such a nature that would preclude Allegheny from paying only those royalties provided for in the Hope lease. Counsel for Mrs. Shearer maintains that the nature of the lease with Allegheny was such that an estate vested in the lessee at the time it entered into possession; that a landlord and tenant relationship was created at that time; and that, there*622fore, Allegheny was estopped to deny the title of Mrs. Shearer and attorn to the Hope lease.
We are unable to agree with these contentions. This Court has consistently held that a lessee under an oil and gas lease has a mere right of exploration, and, therefore, no estate vests in the lessee until the discovery of oil or gas in paying quantities. Carper v. United Fuel Gas Company, 78 W. Va. 433, 440, 89 S. E. 12, 15; Lowther Oil Company v. Miller-Sibley Oil Company, 53 W. Va. 501, pt. 1 syl., 44 S. E. 433. In South Penn Oil Company v. Snodgrass, 71 W. Va. 438, 450, 76 S. E. 961, 966, this Court stated: “Discovery of oil within the term vests an estate, and terminates the mere right of exploration. It creates the relation of landlord and tenant until the end of the fixed term beyond question.”
Counsel for Mrs. Shearer maintain, however, that the lease between Mrs. Shearer and Allegheny “actually vests Allegheny, as lessee, with numerous possessory rights, uses and estates in the Shearer land which contractually create a landlord-tenant relationship between said parties from the very day Allegheny entered upon the land and commenced oil and gas exploratory operations.”
We find no merit in this contention. It is true that the lease between Mrs. Shearer and Allegheny does grant the right to construct pipe lines, power lines, buildings, and all other rights and privileges incident to the economical operation of the land and the right to store gas. The grant of such incidental rights by the Shearer lease is meaningless and worthless unless Allegheny was also granted a legal and valid right to explore and to drill for oil or gas. It was not within Mrs. Shearer’s power to grant such a primary right because of the paramount right of Hope under its valid and subsisting lease. We believe, however, that a grant of the right to explore and operate for oil and gas carries with it an implied right to use as much of the surface as is reasonably necessary to an exercise of such right. We find nothing in this lease that would support a holding that any estate vested in Allegheny at the time it entered *623into possession of the land. Allegheny received the mere contractual right to search for and produce oil and gas upon the land, and no estate vested in it by the mere execution of the lease from Mrs. Shearer.
Counsel for Mrs. Shearer also contend that the trial court erred in holding that the actions of Allegheny in taking an assignment from Hope did not constitute an attornment to Hope in violation of Code, 1931, 37-6-4, which provides: “The attornment of a tenant to any stranger shall be void, unless it be with the consent of the landlord of such tenant, or pursuant to, or in consequence of, the judgment, order, or decree of a Court.” This Court held in Stover v. Davis, 57 W. Va. 196, 49 S. E. 1023 that a tenant in possession cannot dispute his landlord’s title without surrendering possession to him. The lease provides that “The leased premises may be fully and freely used by Lessor for farming purposes, except parts as are used by Lessor in operating hereunder.” Allegheny, therefore, was not granted an exclusive possessory right in the surface of any specific, defined portion of the land. The attornment rule, however, presupposes the existence of a landlord-tenant relationship. In Rosin Coal Land Company v. Martin, 81 W. Va. 33, pt. 4 syl., 94 S. E. 358, the Court stated: “When the relationship of landlord and tenant has been once established the tenant with few exceptions is thereafter estopped to deny his landlord’s title in any action brought against him by the landlord to vindicate his rights under the tenancy.” (Italics supplied.)
There is no basis for our holding in this case that a landlord and tenant relationship was ever effected between Mrs. Shearer and Allegheny. The language of the Shearer lease was not sufficient to create a vested estate in Allegheny at the time Allegheny entered into possession. At that time the lease had created merely a contractual right to enter upon the premises, in order to explore and to drill for oil and gas and, if oil or gas were found in paying quantity, to extract it. At that time, the parties did not know whether the land in question had either oil or gas beneath *624its surface. It is inconceivable that there could be created by lease a vested estate in something which is not known to exist. It has been said that an oil and gas lease is sui generis. It differs from a lease of something which is visible and known to be in existence such, for instance, as a house. Neither oil nor gas was discovered in paying quantity by Allegheny until after it received the assignment from Hope under its 1903 lease. Therefore, the relationship of landlord and tenant never came into existence by virtue of the Shearer lease.
Even if a landlord and tenant relationship had been created by the Shearer lease, the facts of this case do not create a situation for application of the attornment rule. Allegheny has never disputed Mrs. Shearer’s title to the land in question or to any oil or gas which may lie beneath the surface thereof. It has never recognized any lessor or “landlord” other than her. On the contrary, Allegheny from the outset has recognized Mrs. Shearer’s ownership of the tract of land in question, including any oil or gas which may have been a part of that land. Allegheny has never asserted that Hope has either title to the land or ownership of the oil and gas. Title has not been an issue at any time or place in the case. Allegheny has consistently recognized that payment for any gas which it has produced or which it may hereafter produce on the land must be made to Mrs. Shearer. She is the only one to whom Allegheny has undertaken to make payment for gas produced. The case does not involve title to land or ownership of gas. The question in issue between Mrs. Shearer and Allegheny in this case is merely which lease Allegheny is bound to recognize as binding; or in other words, which lease validly and legally fixes the basis upon which Allegheny shall make payments to Mrs. Shearer for gas extracted from her land and the basis of a right in Mrs. Shearer to demand payment to her on a specified basis or in a specified amount.
Allegheny does not assert a hostile or adverse title in Hope. The lease to Hope recognizes title of the landowner. A rule that a tenant or lessee in possession is estopped to *625assert a superior, adverse or hostile title in another cannot, therefore, have any application to the facts of this case. Allegheny has not asserted that it is holding possession adversely to Mrs. Shearer. Rather it contends, with ample justification, that it is in possession pursuant to provisions of the Hope lease and that, when Mrs. Shearer initially acquired title to the land, she acquired that title subject to the valid and duly recorded Hope lease. The lease to Hope grants to it incidental rights to lay pipe lines, to build tanks, stations and structures “to take care of” any oil or gas produced on the land which was the subject of the lease. These incidental rights are not materially different from similar incidental rights enumerated in the Shearer lease. As we have stated previously, such incidental rights arise by implication in a mineral lease, even when not expressly enumerated in the lease. We are of the opinion that the mere execution of such a lease does not create a landlord and tenant relationship or any basis for an estoppel. Lockwood v. Carter Oil Company, 73 W. Va. 175, 183, 80 S. E. 814, 817.
Counsel for Mrs. Shearer allege that the trial court erred in holding that the doctrine of estoppel was inapplicable to this case. The trial court ruled that a landlord-tenant relationship must be in existence before a lessee is estopped to deny his landlord’s title.
We agree with the finding of the trial court. “The estop-pel rule does not apply where the party in possession denies the relationship of landlord and tenant ever existed. * * * The relationship of landlord and tenant must exist before an estoppel can be claimed.” 3 Thompson, Real Property, Section 1040, pages 310-311. In Lockwood v. Carter Oil Company, 73 W. Va. 175, 182, 80 S. E. 814, 817, the Court said: “As we view the evidence the relationship of landlord and tenant between plaintiffs and the Carter Oil Company, as to the particular well in question and the land on which it is located, was never established. If so, there is no estoppel on the oil company to deny plaintiffs’ title, or to hold adversely.”
*626In its written opinion, the trial court made a finding, which we believe is correct, and which is as follows:
“* * * from the pleadings, affidavits, exhibits, evidence, stipulations in this case, and briefs of counsel that the 34.48 acres of oil and gas owned by the plaintiff and leased by her to the defendant by said lease of March 6, 1959, was then bound by a prior effective lease made by Charles L. Bush to the Hope Natural Gas Company dated November 26, 1903; that because of said prior lease the plaintiff had insufficient title and right to make said lease of March 6,1959. Said lease of March 6, 1959, was therefore invalid and ineffective. The invalidity of said lease is a defense in this action, and the plaintiff is therefore found to have no right to recover.”
For reasons stated in this opinion, the judgment of the Circuit Court of Lewis County is hereby affirmed.
Affirmed.