Southern District of Texas Grants Class Certification in Anadarko Securities Fraud Case After Fifth Circuit Remand on Expert Testimony Standards
Following Fifth Circuit remand, the Southern District of Texas granted class certification in institutional investors' securities fraud action against Anadarko Petroleum and senior executives for allegedly misrepresenting viability and profitability of a deepwater Gulf of Mexico oil field project. The court denied cross-motions to exclude expert testimony, finding both investors' rebuttal report and defendants' surreply report on sunk-cost valuation principles satisfied Daubert reliability standards.
Background and Procedural History
Institutional investors brought a putative securities class action against Anadarko Petroleum Corporation and its senior executives alleging violations of Section 10(b) of the Securities Exchange Act and Rule 10b-5. The plaintiffs claimed defendants fraudulently misrepresented and concealed negative information about the viability and profitability of Anadarko's deepwater oil field project in the Gulf of Mexico. After the district court initially granted class certification and denied reconsideration, the Fifth Circuit vacated and remanded. On remand, the parties filed cross-motions to exclude each other's expert testimony, and the investors moved for class certification.
The Expert Testimony Dispute
The investors' expert submitted a rebuttal report, while Anadarko's expert offered a surreply report addressing sunk-cost valuation principles. Both parties moved to exclude the opposing expert's testimony, presenting fundamentally different analyses of stock price movements and causation related to the deepwater project disclosures.
The Court's Daubert Analysis
Judge Eskridge applied the Daubert gatekeeping framework, emphasizing that district courts must make a preliminary assessment as to the validity of the reasoning or methodology underlying expert testimony and whether that reasoning or methodology properly can be applied to the facts in issue. The court noted that "the proponent of testimony by an expert witness must prove by a preponderance of the evidence that the testimony is reliable."
The court found the investors' expert's rebuttal report admissible as reliable. The court similarly admitted Anadarko's expert's surreply report, finding it satisfied reliability standards under Daubert. The court denied both motions to exclude expert testimony.
Class Certification Granted
Having resolved the expert testimony disputes, the court proceeded to analyze the investors' renewed motion for class certification. The court found that all requirements under Rule 23 were satisfied, including numerosity, commonality, typicality, and adequacy of representation. The court further held that the predominance and superiority requirements were met. Accordingly, the court granted the motion for class certification.