Fiduciary Duties in
Oklahoma Companies

Most fiduciary duty disputes in Oklahoma do not involve public companies or famous boardrooms. They involve three owners of a construction company who stopped agreeing, a founder who steered a contract to a business owned by a relative, or a majority owner who sold the company on terms the minority never saw coming. The law that decides those disputes is the same body of fiduciary duty law that governs large corporations, applied to people who often never realized they were fiduciaries.

If you serve as a director, officer, or LLC manager, or hold enough ownership to control a company, you owe legal duties to the business and often to your fellow owners. This guide explains the duty of loyalty, the duty of care, good faith, and the business judgment rule, plus what changes in Oklahoma on November 1, 2026, when a major update to the state’s corporation statute takes effect.

The guide is written for closely held Oklahoma companies, meaning businesses owned by a handful of founders, families, or partners rather than public shareholders. If your company is an LLC, start with our guide to Oklahoma LLC operating agreements, because that document controls much of what follows.

Table of Contents

• Who Owes Fiduciary Duties
• The Duty of Loyalty
• The Duty of Care
• Good Faith and the Duty to Follow the Law
• The Business Judgment Rule
• How Oklahoma LLCs Handle Fiduciary Duties
• Controlling Owners and Minority Owners
• What Changes in Oklahoma on November 1, 2026
• Exculpation, Indemnification, and Insurance
• Practical Safeguards for Closely Held Companies

Who Owes Fiduciary Duties

A fiduciary is someone trusted to act for the benefit of another. In a business, the law imposes that trust on the people who control other people’s money and property. In a closely held Oklahoma company, that usually includes:

• Directors of a corporation, who manage the business and affairs of the company as a board.
• Officers such as the president, CEO, or treasurer, who run the company day to day.
• Managers of a manager managed LLC, and the members who run a member managed LLC.
• Controlling owners, meaning shareholders or members with enough voting power to direct the company, even if they hold no title.

Two points surprise owners. These duties run to the company itself, which is why many fiduciary claims are brought on its behalf as derivative claims. And wearing several hats does not dilute any of them: a founder who is the largest owner, a director, and the CEO owes duties in each role.

Oklahoma’s corporation statute, the Oklahoma General Corporation Act, is modeled on Delaware’s. As the Oklahoma Bar Journal noted in April 2026, Oklahoma courts have held that the Act should be interpreted in accordance with Delaware decisions. In practice, that means Delaware’s large body of fiduciary duty case law is the starting point for most corporate disputes in Oklahoma.

The Duty of Loyalty

The duty of loyalty is the most important fiduciary duty and the one most often litigated. It requires a fiduciary to put the company’s interests ahead of personal interests in any matter involving the company. Courts enforce it strictly because the harm is concrete: a disloyal fiduciary takes value that belongs to the company and its other owners.

The duty of loyalty is violated in a handful of recurring ways:

• Self dealing. The company contracts with a director, officer, or controlling owner, or with a business that person owns, on terms that favor the insider. Leases of a founder’s building, management fees paid to an owner’s other company, and loans to insiders are common examples.
• Taking a corporate opportunity. A fiduciary diverts a business opportunity that belongs to the company, such as a customer, an acquisition, or a new line of business. Courts look at whether the company could have pursued it and whether it fell within the company’s line of business, under what is known as the corporate opportunity doctrine.
• Competing with the company. Starting or helping a competing business while still serving as a fiduciary.
• Misusing confidential information or assets. Using customer lists, pricing, or company property for personal benefit. Departing owners and executives often cross this line, as our Oklahoma trade secrets guide explains.

A conflict of interest is not automatically a breach. Closely held companies do business with insiders all the time, often to the company’s benefit. The law asks whether the deal was handled properly: disclosed, approved by people without a stake in it, or fair to the company. Oklahoma’s statute on these transactions, Section 1030 of Title 18, is being rewritten effective November 1, 2026, as explained below.

The Duty of Care

The duty of care requires fiduciaries to make decisions on an informed basis, with the attention a reasonably careful person would bring to the job. It is about process, not results. A board that makes a careful, informed decision that turns out badly has not breached the duty of care. A board that rubber stamps a major decision without reading the materials may have.

For corporate directors, Delaware courts measure the duty of care against a gross negligence standard, and Oklahoma courts generally follow that approach. The leading example is Smith v. Van Gorkom, the 1985 Delaware Supreme Court decision holding directors liable for approving the sale of their company after a short meeting, without reviewing the merger agreement or obtaining a valuation study. The case remains the clearest lesson in why process matters.

In practice, meeting the duty of care means reading the materials before voting, asking questions until you get answers, relying on qualified advisors when a decision calls for expertise, taking enough time on major decisions, and keeping minutes that show what was considered, not just what was decided.

Directors also have a duty of oversight. Under the Delaware line of cases that began with In re Caremark in 1996, a board must make a good faith effort to put reporting systems in place for the company’s key risks and must respond to red flags it learns about. Delaware courts treat a complete failure of oversight as a matter of good faith, and therefore of loyalty, which matters because protections against care claims do not cover it.

Good Faith and the Duty to Follow the Law

Good faith is not a separate duty in Delaware so much as a condition of loyalty. A fiduciary who acts with a purpose other than advancing the company’s interests, who intentionally disregards known responsibilities, or who knowingly causes the company to break the law is not acting in good faith.

Some sources describe a separate “duty of obedience,” meaning the obligation to keep the company operating within the law and within its own governing documents. Whatever label is used, the rule is the same. Directors and officers cannot knowingly cause the company to violate the law, even if the violation would be profitable. Approving a plan to skip required permits, misclassify workers, or ignore environmental rules exposes the people who approved it, not just the company.

This category carries the most personal risk because the usual protections do not apply. Oklahoma allows companies to eliminate director liability for many care claims, but not for acts not in good faith, intentional misconduct, or knowing violations of law. Oklahoma State University’s directors’ legal handbook for cooperative boards makes the same point: honest, careful directors are well protected.

The Business Judgment Rule

The business judgment rule is the reason most business decisions are never second guessed by a court. It is a presumption that directors acted on an informed basis, in good faith, and in the honest belief that their decision was in the company’s best interests. A shareholder who challenges the decision has the burden of rebutting that presumption. As Delaware’s own explanation of the rule puts it, courts defer to directors who act loyally and carefully.

The rule protects decisions, not outcomes. It does not apply, and a court will look much harder at the decision, when:

• A majority of the decision makers had a conflict or lacked independence from someone who did.
• The decision was uninformed, meaning the directors did not consider reasonably available material information.
• The directors acted in bad faith or with a purpose other than the company’s interests.
• A controlling owner stood on both sides of the transaction, absent the cleansing steps discussed below.

When the rule falls away, Delaware courts generally apply “entire fairness” review, which requires the defendants to prove both fair dealing, meaning a fair process, and a fair price. That is an expensive standard to litigate and a hard one to win. The National Association of Corporate Directors has tracked recent Delaware decisions showing how quickly protection disappears when process breaks down.

How Oklahoma LLCs Handle Fiduciary Duties

Most closely held Oklahoma businesses are LLCs, and the rules for LLCs start with the statute rather than case law. Section 2016 of the Oklahoma Limited Liability Company Act requires a manager to act in good faith, with the care an ordinarily prudent person in a like position would exercise under similar circumstances. The same section lets managers rely on information from employees, professionals, and committees they reasonably believe are reliable, and it provides that a manager who acts in compliance with the business judgment rule is not liable for the decision.

Section 2016 also imposes a duty to account. Unless the operating agreement provides otherwise, a manager must hold as trustee for the company any profit or benefit derived from company transactions or the use of company property. That is the statutory core of an LLC manager’s duty of loyalty.

The operating agreement can reshape these rules. A well drafted agreement can permit specified related party arrangements, define which opportunities belong to the company, say whether members may compete, and set approval procedures for conflicts. A poorly drafted one leaves those questions to a court, and agreements written by founders who trusted each other completely often say nothing about conflicts at all. Our guide to minority owner protections covers how fiduciary waivers and modifications should be negotiated.

In a member managed LLC, the members who run the business generally carry the management duties. In a manager managed LLC, passive members typically do not, unless they control the company or the operating agreement says otherwise.

Controlling Owners and Minority Owners

Owning a majority of a company carries power, and the law attaches duties to that power. Under Delaware precedent, which Oklahoma courts follow, a controlling shareholder owes fiduciary duties to the corporation and its minority shareholders when exercising control. A controller may vote its shares in its own interest on ordinary matters, but it may not use control to extract value that is not shared with the other owners.

In closely held companies, the flashpoints are predictable:

• Compensation or perks paid to the controller or family members, often while distributions are withheld.
• Dilutive equity issuances that shrink the minority’s stake.
• Buying out or squeezing out the minority on terms the controller set.
• Selling the company on terms that give the controller extra value, such as a consulting agreement, rollover equity, or a separate payment.

Many of these disputes are better solved by contract before they start. Buy and sell provisions, transfer restrictions, and drag along and tag along rights define what happens when owners part ways. Our guides to buy and sell agreements and exiting an LLC cover those terms in detail. The sale scenario raises its own set of duties, which we cover in our guide to fiduciary duties when selling a closely held company.

What Changes in Oklahoma on November 1, 2026

On May 12, 2026, Governor Stitt signed House Bill 3498, a broad update to the Oklahoma General Corporation Act that passed its final votes 88 to 0 in the House and 47 to 0 in the Senate. Supporters described it as an effort to keep Oklahoma’s corporate law competitive with Delaware. Much of it tracks Delaware’s 2024 and 2025 amendments, the latest of which the Delaware Supreme Court upheld in February 2026. The law takes effect November 1, 2026. For Oklahoma corporations, four changes matter most.

1. New rules for approving conflicted transactions. Rewritten Section 1030 provides that a transaction involving a director or officer cannot be undone or give rise to damages against them solely because of the conflict, if the material facts are disclosed and it is approved by one of three paths:

• A majority of the disinterested directors, acting in good faith and without gross negligence. If a majority of the board is not disinterested, the approval must come from a committee of at least two directors the board has determined to be disinterested.
• A majority of the votes cast by disinterested shareholders, in an informed and uncoerced vote.
• Proof that the transaction is fair to the corporation and its shareholders.

2. A safe harbor for controlling shareholder transactions. For the first time, the statute defines a controlling shareholder: a person who controls a majority of the voting power, who has the right to elect a majority of the board, or who holds at least one third of the voting power along with managerial authority over the business. A deal between the corporation and its controller is protected if it is approved by a committee of two or more disinterested directors with authority to negotiate and reject it, or by a majority of the votes cast by disinterested shareholders, or if it is fair. A “going private” transaction that cashes out the minority requires both committee approval and the disinterested shareholder vote, unless the controller can prove fairness.

3. Controlling shareholders gain exculpation. A controlling shareholder can no longer be held liable for money damages for breach of fiduciary duty except for breaches of loyalty, acts not in good faith, intentional misconduct, knowing violations of law, or transactions producing an improper personal benefit. Pure care claims against controllers are effectively eliminated.

4. Narrower books and records rights, and enforceable shareholder agreements. Amended Section 1065 defines the “books and records” a shareholder may inspect, requires the demand to describe its purpose and the records sought with reasonable particularity, and lets the corporation impose confidentiality conditions and redact material unrelated to the stated purpose. New paragraph 18 of Section 1016 expressly authorizes a corporation to contract with current or prospective shareholders, including agreements that require a shareholder’s consent before the company takes specified actions.

Exculpation, Indemnification, and Insurance

Fiduciaries in Oklahoma companies have three layers of protection, and each has limits.

Exculpation. Section 1006(B)(7) of the Oklahoma General Corporation Act allows a certificate of incorporation to eliminate or limit a director’s personal liability for money damages for breach of fiduciary duty. Effective November 1, 2024, Senate Bill 620 extended that option to officers, as the Oklahoma Bar Journal reported. Exculpation never covers breaches of loyalty, acts not in good faith, intentional misconduct, knowing violations of law, or improper personal benefits. It also applies only if the certificate of incorporation actually contains the provision, and many older Oklahoma charters do not.

Indemnification. Section 1031 allows a corporation to indemnify directors, officers, employees, and agents for expenses and losses from claims arising out of their service, generally if they acted in good faith and in a manner they reasonably believed was in the company’s best interests. Bylaws or separate indemnification agreements can make indemnification mandatory and require the company to advance defense costs as they are incurred. Operating agreements serve the same function for LLC managers.

Insurance. Directors and officers liability insurance covers defense costs and settlements when the company cannot or will not indemnify. Closely held companies often skip it until an investor or lender insists. Review the exclusions for claims between owners, which are usually the claims that matter most.

Practical Safeguards for Closely Held Companies

Fiduciary duty claims are won and lost on the record. These steps cost little and change outcomes:

1. Inventory every related party arrangement. List each contract, lease, loan, or payment involving an insider or family member, and confirm it was disclosed and approved.
2. Adopt a conflict of interest policy. Require written disclosure before any vote and recusal by the conflicted person.
3. Hold real meetings and keep real minutes. Record what information was reviewed, what questions were asked, and why the decision was made.
4. Use outside advisors on large decisions. Their work creates evidence of care.
5. Update governing documents for HB 3498. Confirm your certificate of incorporation includes exculpation for directors and officers, and review bylaws and shareholder agreements against the new rules before November 1.
6. Define opportunities and competition in writing. Operating agreements and shareholder agreements should say which opportunities belong to the company and whether owners may compete.
7. Plan for owner exits. Most fiduciary litigation begins when owners want out. Buy and sell terms and succession planning prevent many disputes entirely.

Our corporate strategy and planning practice helps Oklahoma companies put these safeguards in place before they are tested.

Frequently Asked Questions

• What is the duty of loyalty?

  It requires directors, officers, managers, and controlling owners to put the company’s interests ahead of their own in matters involving the company. Self dealing, taking corporate opportunities, competing with the company, and misusing confidential information are the most common breaches.

• What is the duty of care for corporate directors?

  Directors must make decisions on an informed basis, with the attention a reasonably careful person would bring. Courts following Delaware law measure it against a gross negligence standard and focus on the decision process, not the result.

• What is the business judgment rule?

  It is a presumption that directors acted on an informed basis, in good faith, and in the company’s best interests. It shields decisions from second guessing unless a challenger shows a conflict, bad faith, or an uninformed process.

• Do LLC managers owe fiduciary duties in Oklahoma?

  Yes. Section 2016 of the Oklahoma LLC Act requires managers to act in good faith with ordinary prudent care and to hold company benefits as trustee unless the operating agreement provides otherwise. Managers who follow the business judgment rule are protected.

• Can an operating agreement change fiduciary duties in Oklahoma?

  To a significant degree. The LLC Act lets the operating agreement alter the duty to account and address related party deals, opportunities, and competition. How far it can go in eliminating duties is less settled, so changes should be drafted carefully.

• Do majority shareholders owe duties to minority shareholders?

  Yes, when they exercise control. A controlling shareholder may vote in its own interest on ordinary matters but may not use control to take value that is not shared with the other owners.

• What changes in Oklahoma on November 1, 2026?

  HB 3498 rewrites the approval rules for conflicted transactions, creates safe harbors and exculpation for controlling shareholders, narrows shareholder inspection rights, and authorizes contracts granting shareholders consent rights. It applies to corporations, not LLCs.

• Can directors be personally liable for business decisions?

  Rarely for honest, informed decisions. Exculpation clauses, indemnification, and insurance protect most directors. None of them cover breaches of loyalty, bad faith, intentional misconduct, or knowing violations of law.

• What is the duty of obedience?

  It is the obligation to keep the company operating within the law and its governing documents. Courts following Delaware law treat knowingly causing the company to violate the law as a failure of good faith, which carries personal exposure.

• How should a board handle a conflict of interest?

  Disclose the material facts in writing, have the conflicted person step out, and have the decision made by disinterested directors or disinterested owners. Document the review in the minutes, and get a valuation or fairness review on large deals.

Disclaimer: This article provides general information about fiduciary duties in Oklahoma corporations and limited liability companies and is not legal advice. Fiduciary duty law depends heavily on the facts, the entity’s governing documents, and developing case law, and the HB 3498 amendments described here take effect November 1, 2026. Consult a qualified attorney about your situation.

About Cantrell Law Firm: We are business attorneys who were business owners first. Licensed in Oklahoma, Colorado, and Wyoming, we advise closely held companies, their owners, and their boards on governance, owner disputes, and transactions. Contact Cantrell Law Firm to discuss your company’s governance.