Mobil Chemical Company v. Bell Case Brief

Texas Supreme Court1974Docket #1365319
517 S.W.2d 245 18 Tex. Sup. Ct. J. 113 1974 Tex. LEXIS 339 Torts Civil Procedure Evidence

Complete case briefs with LSD+

Every LSD.Law brief pairs a full IRAC analysis with opinion summaries at three levels of depth, written by a team of Harvard Law and MIT graduates - a quick synopsis when you are pressed for time, the complete reasoning when you need to go deep.

Adaptive Case Views

Toggle between Flash, Standard, and Expanded. Get what you need, when you need it.

Exam-Ready IRAC Format

We deliver the precise structure professors look for in exam answers.

Complex Cases, Clarified

We break down dense legal reasoning into something digestible, helping you grasp core concepts.

Case Brief Summary & Legal Analysis

3 min read

tl;dr: Workers were injured by an acid leak from a new chemical plant unit under the defendant’s control. The court held that res ipsa loquitur allows a jury to infer negligence from the circumstances and should be submitted as a single, broad negligence question.

Legal Significance: Clarifies that in Texas, res ipsa loquitur is a rule of evidence creating a permissible inference of negligence, not a presumption, and establishes that broad-form submission of the ultimate negligence issue is the proper jury submission method.

Mobil Chemical Company v. Bell Law School Study Guide

Use this case brief structure for your own legal analysis. Focus on the IRAC methodology to excel in law school exams and cold calls.

Case Facts & Court Holding

Key Facts & Case Background

Plaintiffs, employees of an independent contractor, were injured by a high-pressure spray of acetic acid from a newly constructed chemical plant unit. The defendant, Mobil Chemical, had recently accepted the unit from the contractor after testing and was in exclusive control, conducting commissioning operations. The leak occurred when a pressure relief mechanism, which had functioned properly the previous day after Mobil personnel performed maintenance on it, failed violently. The jury did not find Mobil liable for specific negligent acts but did find for the plaintiffs under the doctrine of res ipsa loquitur. Mobil offered expert testimony suggesting the failure was caused by a pre-existing manufacturing or installation defect in a pipe, which occurred before Mobil assumed control. However, eyewitness testimony conflicted with Mobil’s theory about the location of the rupture, and the jury could infer that Mobil’s recent maintenance or inadequate testing was the more probable cause of the failure.

Court Holding & Legal Precedent

Issue: In a negligence case where the plaintiff relies on the doctrine of res ipsa loquitur, should the court submit special issues to the jury on the foundational elements of the doctrine, or should it submit only a broad, ultimate issue of negligence?

The lower appellate court’s proposed submission method was improper. The foundational elements Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptat

Read the full analysis

The complete holding, rule, and analysis for this case are available to LSD+ subscribers.

Start 14-Day Free Trial

IRAC Legal Analysis

Premium Feature Unlock

About IRAC analysis

IRAC (Issue, Rule, Analysis, Conclusion) is the structure professors expect in exam answers. Each LSD.Law brief states the issue, the governing rule with citations, the court's application of that rule, and the conclusion - the same reasoning pattern you will use on exams and in practice.

Legal Issue

In a negligence case where the plaintiff relies on the doctrine of res ipsa loquitur, should the court submit special issues to the jury on the foundational elements of the doctrine, or should it submit only a broad, ultimate issue of negligence?

Conclusion

This case is a key Texas authority on the doctrine of res Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco la

Legal Rule

The doctrine of res ipsa loquitur is a rule of evidence applicable Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident

Legal Analysis

The Texas Supreme Court clarified that res ipsa loquitur ("the thing speaks Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui o

Flash-to-Full Case Opinions

Flash Summary

  • Res ipsa loquitur is a rule of evidence permitting, but not
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugia

Read the full analysis

The complete holding, rule, and analysis for this case are available to LSD+ subscribers.

Start 14-Day Free Trial