Matador Petroleum Corporation (“Matador”) appeals the district court’s grant of summary judgment in favor of St. Paul Surplus Lines Insurance Company (“St. Paul”). Matador contends that St. Paul wrongfully denied coverage under an insurance policy. We affirm.
I
St. Paul provided Matador with insurance coverage pursuant to an oil and gas commercial general liability policy. Under the terms of the policy, St. Paul agreed to defend and indemnify Matador against liability for “bodily injury” and “property damage” caused by an “accident, including continuous or repeated exposure to substantially the same general harmful conditions.” The policy also contained an absolute pollution exclusion clause, which provided:
We won’t cover injury or damage ... that result[s] from pollution at or from any:
® protected person’s premises;
• waste site;
• protected person’s work site;
• offshore site;
• of your products; or
• of your completed works.
Nor will we cover any injury or damage that results from pollution involving any waste pollution.
The policy defined “pollution” as “any actual, alleged or threatened discharge, dispersal, escape, migration, release or seepage of any pollutant.”
In conjunction with this basic insurance policy, Matador purchased from St. Paul an endorsement that provided a narrow exception to the absolute pollution exclusion. The endorsement stated that St. Paul would not apply the pollution exclusion in the event of a “covered pollution incident.” The endorsement defined “covered pollution incident” as:
*656 the discharge, dispersal, release, or escape of pollutants that:
• Results from an event;
• Begins and ends within 72 hours, and does not result from a well out of control; or results from a well out of control above the surface of the ground or waterbottom;
• Is known to you or your operating partner within 7 days of its beginning; and
• Is reported to the company within 30 days of its beginning.
On or about March 29, 1994, a drilling pit collapsed in a well owned in part by Matador. The collapse of the pit caused a discharge of pollutants, which seeped onto adjacent property and waterways. Matador reported the incident to St. Paul's agent on May 6, 1994-thirty-eight days after the pollution incident occurred-and requested coverage under the policy for damages claimed by landowners adjacent to the drilling pit. After investigating Matador's claim, St. Paul declined the request for coverage, and informed Matador that St. Paul would not provide it with a defense or indemnity. Matador filed suit in Texas state court seeking damages for expenses incurred in defending against the claims asserted by the adjacent landowners. St. Paul then removed the case to federaJ district court on the basis of diversity jurisdiction.
St. Paul argued before the district court that it properly denied coverage to Matador because Matador failed to report the pollution incident within thirty days as required by the endorsement. The district court agreed and granted St. Paul summary judgment. Matador timely appealed.
II
We review the district court’s grant of summary judgment
de novo. See American Guarantee and Liability Ins. Co. v. The 1906 Co.,
A
Matador first argues that the district court erroneously granted St. Paul summary judgment because the endorsement to the insurance policy is ambiguous. The endorsement obligated St. Paul to provide insurance coverage for a pollution incident only if the incident was “reported to the company within 30 days of its beginning.” Matador contends that this provision is ambiguous because “the company” could refer to either St. Paul or Matador. According to Matador, because the provision is ambiguous, we must construe the provision in its favor; in other words, we must interpret “the company” to mean Matador. Matador had notice of the incident within thirty days after the incident began, and therefore, in Matador’s opinion, it complied with the terms of the endorsement.
Texas law controls our interpretation of St. Paul’s insurance policy.
See Canutillo Indep. Sch. Dist. v. National Union Fire Ins. Co.,
When interpreting a contract, our primary concern “is to ascertain and to give effect to the intentions of the parties as expressed in the instrument.”
R & P Enter. v. LaGuarta, Gavrel & Kirk, Inc.,
Examining the policy as a whole shows that the reading espoused by Matador entails an awkward and unreasonable interpretation of the endorsement. Under the endorsement, a pollution incident is covered only if the incident:
• Is known to you or your operating partner within 7 days of its beginning; and
• Is reported to the company within 30 days of its beginning.
Neither party disputes that “you,” as used in the seven-day notice provision, refers to Matador. . Thus, we may infer that “the company” does not refer to Matador. Had the parties intended to require that Matador also receive notice within thirty days, the policy reasonably would read: “Is reported to
you
within 30 days of its beginning.”
Cf. Mississippi Poultry Assoc. v.
Madigan,
Thus, we agree with the district court that the endorsement’s language has a certain meaning and is not “reasonably
*658
susceptible” to more than one interpretation.
Coker,
B
Matador next argues that, even if the terms of the endorsement are not ambiguous, St. Paul cannot demonstrate that it suffered prejudice as a result of Matador’s untimely notice. In Matador’s opinion, because St. Paul did not suffer prejudice, the delay of eight days before notice occurred did not discharge St. Paul of its obligation to provide insurance coverage. Matador asserts that the district court erred when it relieved St. Paul of its obligation to provide coverage.
Contrary to Matador’s apparent position, courts do not always require a showing of prejudice in order for an insurance company legitimately to deny coverage where the insured fails to comply with an insurance policy’s notice provisions. Instead, the impact that untimely notice has on coverage depends on the type of insurance policy. For example, courts traditionally distinguish between two types of insurance policies: “occurrence” policies and “claims-made” policies.
2
In the case of an “occurrence” policy, any notice requirement is subsidiary to
the
event that triggers coverage. See
FDIC v. Booth,
The fact that courts strictly enforce notice requirements in “claims-made” policies, but take a distinct approach towards notice requirements in “occurrence” policies, reflects a difference in the nature of the bargain underlying each type of policy. Courts interpret notice provisions in “claims-made” policies strictly because in these types of policies, unlike in “occurrence” policies, the insured and insurer specifically negotiate the terms of the notice provisions.
See Komatsu,
The policy at issue in this case shares characteristics in common with both an “occurrence” and a “claims-made” policy. To decide, therefore, whether St. Paul needs to show prejudice to deny Matador coverage legitimately, we look to the nature of the bargain underlying their agreement. See id. (“Insurance contracts are subject to careful scrutiny to avoid injury to the public. However, we must look to the type of contract bargained for.”).
The basic insurance contract between Matador and St. Paul did not include coverage for pollution. The endorsement provision supplemented the basic agreement and constituted additional bargained for coverage. An extension of the notice period under the endorsement would expand this coverage and would expose St. Paul to a risk broader than the risk expressly insured against in the policy. St. Paul and Matador are both sophisticated commercial parties with comparable bargaining power.
See FDIC v. Insurance Co. of N. America.,
We find support for our conclusion in
Certain Underwriters at Lloyd’s London v. C.A. Turner Construction Co.,
Likewise, in this case, under the plain language of the endorsement, timely reporting of the claim constituted one of the events necessary to trigger coverage. Wé will respect the plain language of the limitation contained in the endorsement. Matador received what it bargained for under the endorsement, with premiums presumably reduced to reflect the limited coverage. Whether St. Paul suffered prejudice as a result of Matador’s late notice is irrelevant. The district court properly enforced the insurance policy according to its terms.
C
Finally, Matador maintains that the district court erred because the summary judgment evidence established that St. Paul waived any right it may have had to deny coverage. According to Matador, St. Paul twice charged and accepted a deductible relating to the pollution incident even after it became aware of the late notice. Moreover, Matador contends that St. Paul attended a strategy session with Matador and the other owners of the well without any notice of reservation of its rights. According to Matador, St. Paul cannot now deny coverage.
Under Texas law, an insurance company, through its actions, may waive a condition precedent to performance on an insurance policy, or become estopped from denying coverage under the policy.
See FDIC v. United States Fire Ins. Co.,
Whereas waiver and estoppel may operate to avoid forfeiture of a policy and may prevent an insurance company from avoiding payment because of the failure on the part of the insurer to comply with some requirement of the policy, waiver and estoppel cannot enlarge the risks covered by a policy and cannot be used to create a new and different contract with respect to the risk covered and the insurance extended.
The Minnesota Mutual Life Ins. Co. v. Morse,
*661
Applying waiver as requested by Matador would substantially alter and enlarge the risks covered under the insurance policy. In other words, holding that coverage exists, despite Matador’s untimely notice, would “materially change the scope of coverage, would be contrary to the plain language of [the insurance policy,] ... and would circumvent the objective intent of the parties to the contract.”
United States Fire Ins.,
Ill
For the foregoing reasons, we AFFIRM the district court’s summary judgment.
Notes
. Matador argues that evidence discovered after the district court granted summary judgment establishes that the language of the endorsement is ambiguous. It contends that the district court abused its discretion when it refused to consider the additional evidence in support of Matador's Miotion For Reconsideration.
See
Fed.R.Civ.P. 59(e). Matador, however, has not demonstrated why the evidence it relies upon qualifies as "newly discovered evidence.”
See Becerra v. Asher,
. An "occurrence” policy covers the insured for acts or omissions that occur within the policy period, regardless of whether "the claim ... is brought to the attention of the insured or made known to the insurer during the policy period.”
Yancey,
. Matador contends that
Hanson Production Co. v. Americas Insurance Co.,
. Matador argues that "the evidence supporting St. Paul's Motion for Summary Judgment was defective and it was error for the District Court to grant summary judgment thereon.” Specifically, Matador contends that the district court erroneously denied Matador's motion to strike an affidavit by Valerie Colvin, in which she attested that St. Paul charged Matador the policy deductible as a result of an accounting error. Having concluded that, as a matter of law, waiver may not operate to change the risks covered by an insurance policy, we find immaterial the facts attested to in Valerie Colvin's affidavit. Accordingly, any error by the district court was harmless.
See Multiponics, Inc. v. Guice,
