Tisdal & O'Hara, PLLC
13808 Wireless Way, Oklahoma City, OK 73134, Oklahoma City, OK 73134
4.0(6)About Tisdal & O'Hara, PLLC
Tisdal & O'Hara, PLLC is an Oklahoma law firm with offices in Clinton and Oklahoma City. The firm represents clients in personal injury matters, including car, motorcycle, and trucking accidents, and wrongful death claims. Their practice also encompasses energy law, business law, and ad valorem tax litigation, often representing mineral rights and landowners. With over 100 years of combined experience, the firm's attorneys have secured significant recoveries and litigated cases up to the Supreme Court level.
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Notable Case Results
Case results are sourced directly from attorney websites by Injuria.ai's data infrastructure, which actively monitors 22,000+ personal injury law firms. They are not results obtained by ThatCarHitMe.com. Prior results do not guarantee a similar outcome.
$25M
Royalty Class Action
Glen D. Sacket v. Great Plains Pipeline Co., et al., Case No. CJ-2002-70, District Court of Woods County, State of Oklahoma (royalty class action settlement for $25 million).
$350,000
Wrongful Death
TISDAL & O'HARA represented the children of an elderly farmer/rancher whose death resulted from injuries sustained in a motor vehicle collision. The firm's representation resulted in a $350,000 settlement.
$2M
Wrongful Death
TISDAL & O'HARA represented the husband and children of a woman whose death resulted from injuries she sustained when a negligently driven delivery truck collided with the bicycle she was riding. The firm's representation resulted in a $2 million wrongful death settlement, including cash payments and trusts established for her children's' education.
$25M
Royalty Owner Class Action
In the case of Glen D. Sacket v. Great Plains Pipeline Co., et al., Case No. CJ-2002-70, District Court of Woods County, State of Oklahoma, TISDAL & O'HARA were appointed lead counsel and achieved certification of a class of royalty owners asserting claims for unpaid royalties on production from wells hooked to a single gathering system located in Woods, Major and Alfalfa Counties, Oklahoma. The royalty owners asserted claims for improper deductions, affiliate transactions and civil conspiracy. After the court order certifying the case as a class action was affirmed on appeal, the firm's representation resulted in a $25 million settlement, which was distributed to royalty owners in the subject wells.
$116M
Ad Valorem Tax Litigation
TISDAL & O'HARA represented the Assessors of Custer, Woodward and Washita Counties in litigation against affiliates of a worldwide wind energy company concerning the valuation of 120 wind turbines for ad valorem tax purposes. The firm's representation lead to judgments in the three counties of market values of the wind turbines totaling approximately $116 million. Such valuation resulted in the distribution of substantial ad valorem tax revenue to area school systems and other facilities dependent on such funds.
$280,000
Surface Damages Act
TISDAL & O'HARA represented landowners in litigation seeking damages under the Oklahoma Surface Damages act in connection with the construction of a location for drilling and production equipment. The firm successfully negotiated a settlement with the oil & gas producer, which included a cash payment of $280,000 and additional concessions concerning fencing and gates, road repair and maintenance and electric powered equipment installed at the well site and location of pipelines.
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