OPINION ON MOTION FOR REHEARING
We withdraw our opinion of August 16, 1994, and the conditional grant of Relator’s petition for writ of mandamus issued on August 16, 1994. The following is now the Court’s opinion.
Marathon Oil Co. challenges a discovery order entered by respondent requiring the production of documents. Marathon claims privilege under the attorney-client privilege or the attorney work product exemрtion from discovery. We agree with Marathon. The trial court abused its discretion in rejecting Marathon’s claim of privilege. We conditionally grant the writ.
THE DISCOVERY DISPUTE
St. Clair-Urdaneta, Inc. assigned Colombian coal licenses to Marathon under a binding letter of intent. St. Clair received payment and a nonparticipating royalty interest in exchange for the licenses. St. Clair sued Marathon alleging breach of the letter of intent. St. Clair claimed Marathon breached its contractual duty to use its best efforts in maintaining the coal licenses in good standing when the Colombian government nationalized the domestic coal industry. St. Clair sought damages for loss of royalties because Marathon gave up the coal licenses thаt St. Clair had transferred to Marathon.
St. Clair sought production of documents from Marathon and filed motions to compel. Marathon produced some documents and asserted privilege to others. Marathon submitted a privilege log identifying 914 documents. Marathon also submitted affidavits from two of its attorneys. The trial court conducted an in camera inspection of these documents. After its inspection, the trial court ordered Marathon to produce 759 of the 914 documents. In some instances, the trial court found documents privileged, but denied privilege to their duplicates. The trial court did not state the reason for ordering the documents produced.
Marathon contends the trial court improperly ordered production of privileged documents because St. Clam did not refute Mara *589 thon’s prima facie showing of privilege. St. Clair contests Marathon’s privilege and, alternatively, contends Marathon waived any claim of privilege.
APPLICABLE LAW
A. Standard of Review
For mandamus to issue, the trial court must commit a clear abuse of discretion, and the relator must not have an adequate remedy at law.
Walker v. Packer,
When a trial court’s interpretation of discovery law is at issue, we treat the trial cоurt’s order as a legal conclusion. We review the legal conclusion with limited deference to the trial court.
See Walker,
Mandamus will not issue when there is an adequate remedy at law.
Walker,
B. Privilege
1. Attorney-Client
Rule 503 precludes discovery of the confidential communications made between client and attorney. Tex.R.Civ.Evid. 503. This privilege attaches to the complete communication between attorney and client.
GAF Corp. v. Caldwell,
2. Work Product
Rule 166b(3)(a) precludes discovery of an attorney’s work product. TexR.Civ.P. 166b(3)(a). The work product exemption shields the attorney’s mental processes, conclusions, and legal theories. The exemption provides a privileged area within which the attorney can analyze and prepare the case.
Owens-Corning Fiberglas Corp. v. Caldwell,
3.Burden of Proof
To show a privilege, a party must plead the particular privilege, produce evidence to support the privilege through affidavits or testimony, and produce documents if the trial court determines that an
in camera
review is
*590
necessary.
See
Tex.R.Civ.P. 166b(4);
Peeples v. Fourth Supreme Judicial District,
4. In Camera Inspection
Often the allegedly privileged documents may be thе only evidence substantiating the privilege claim.
Weisel Enters., Inc. v. Curry,
When a party satisfies the procedural requirements for privilege and tenders the documents to the trial court, the trial court must conduct аn
in camera
inspection.
Shell W. E & P, Inc. v. Oliver,
C. Waiver of Privilege
1. Offensive Use
A person cannot claim privilege to pertinent evidentiary information while he simultaneously seeks affirmative relief.
Republic Ins. Co. v. Davis,
To find a waiver of the privilege through offensive use, the trial court must find three factors exist. First, the trial court must find the party asserting the privilege is seeking affirmative relief. Second, the trial court must find the privileged information, if believed by the fact finder, would probably be outcome determinative. Third, the trial court must find disclosure of the privileged communication is the aggrieved party’s only means of access to the evidence.
Trans-American Natural Gas Corp. v. Flores,
A defendant raising a declaratory judgment counterclaim is not necessarily seeking affirmative relief.
Davis,
2. Voluntary Disclosure
A person waives privilege if he voluntarily discloses any significant part of the privileged material. Tex.R.Civ.Evid. 511. Disclosure of privileged documents can result in an implied waiver of the privilege to other documents.
Terrell State Hosp. v. Ashworth,
D. Fiduciary Relationships
A fiduciary relationship is a formal, technical relationship of confidence and trust that imposes upon a fiduciary greater duties as a matter of law.
Central Sav. & Loan v. Stemmons N.W. Bank, N.A.,
A mere contractual relationship reserving a nonparticipatory royalty interest will not create a fiduciary relatiоnship between the parties.
Pickens v. Hope,
To
determine whether a fiduciary relationship exists, the focus is on whether there is a relationship of trust and confidence.
Pickens,
E. Joint Representation/Direct or Third-Party Beneficiary
The attorney-client privilege does not apply to a communication relevant to a matter of common interest between or among two or more clients if the communication was made by any of the clients to a lawyer retained or consulted in common, when offered in an action between оr among any of the clients.
See
Tex.R.Civ.Evid. 503(d)(5). In the absence of privity of contract, an attorney owes no duty to a third party.
See First Mun. Leasing Corp. v. Blankenship, Potts, Aikman, Hagin & Stewart,
APPLICATION OF THE LAW TO THE FACTS
A.Prima Facie Claim of Privilege
Marathon satisfied the elements of a pri-ma facie claim of privilege. Marathon pleaded privilege under the attorney-client privilege and work product exemption. Marathon submitted affidavits from its attorneys and a detailed privilegе log to support the privilege claim. The log identified the documents and the privileges asserted to each of them. Finally, Marathon tendered the documents for the trial court’s in camera review. Because Marathon made a prima facie case, the burden shifted to St. Clair to refute the privilege claim.
B.Documents Relate Only to Business Activities
St. Clair contested the privilege claim by arguing the documents sought related only to Marathon’s business activities. Thus, St. Clаir argues Marathon cannot claim privilege over the documents in dispute. However, St. Clair fails to recognize the subject matter of a completed attorney-client communication is immaterial when deciding if the privilege applies.
See Keene Corp.,
C.Waiver
Aternatively, St. Clair argues Marathon waived any privilege or exemption.
*592
First, St. Clair argues Marathon is using the privilege offensively. A claim for affirmative relief is an essential element of the offensive use waiver. St. Clair argues Marathon seeks affirmative relief by raising affirmative defenses. St. Clair cites
National Union Fire Insurance Co. v. Valdez
to support its argument. St. Clair misreads
Valdez. Valdez
does not hold that an assertion of affirmative defenses is a claim for affirmative relief.
See Valdez,
D.Fiduciary Duty
Second, St. Clair contends Marathon owed St. Clair a fiduciary duty, which prevented Marathon from asserting privilege against St. Clair. St. Clair argues Marathon and St. Clair were in a special relationship because Marathon represented St. Clair’s property interests in negotiations and litigation in Colombiа. St. Clair also argues the letter of intent created a relationship analogous to the relationship between an executive interest holder and a nonexecutive interest holder in the oil and gas context.
Marathon and St. Clair entered into a binding letter of intent requiring Marathon to form a joint venture with a third party to develop the Colombian сoal licenses. The letter of intent provided Marathon would make cash payments to St. Clair in consideration of St. Clair’s assignment of its Colombian coal licenses. St. Clair also received a nonparticipatory royalty interest in coal sold under the licenses in consideration of the assignment. The contractual relationship reserving a nonparticipatory royalty interest in St. Clair did not create a fiduciary duty.
See Pickens,
St. Clair relies on
Manges
to argue that Marathon owed St. Clair a fiduciary duty. However, under the undisputed facts here,
Manges
does not apply. In
Manges,
the executive and nonexecutive were eotenants in a mineral estate. Also, the court found a relationship of trust and confidence between the parties, which created a fiduciary relationship.
Manges,
Here, there is no cotenancy in a property interest, only assignment of licenses with a reservation of a nonparticipating royalty interest. Also, St. Clair produced no other evidence to show a relationship of trust and confidence between it and Marathon. The relationship between the parties in Pickens more аccurately characterizes the relationship between Marathon and St. Clair. Neither the contract nor Marathon’s control over the licenses created a fiduciary relationship under the undisputed facts of this case. We find, as a matter of law, that St. Clair did not prove a fiduciary relationship existed between Marathon and St. Clair.
E.Voluntary Disclosure
Third, St. Clair argues Marathon impliedly waived privilege when Marathon produced other privileged documents in a previous lawsuit. However, an implied waiver is not an automatic, blanket waiver of the privilege for all underlying documents.
See Hoffman,
F.Joint Representation/Direct or Third-Party Beneficiary
St. Clair argues the documents Marathon generated are discoverable because Marathon generated them in the course of a joint representation of Marathon’s and St. Clair’s interest. St. Clair also argues it was a direct or third-party beneficiary of the legal services Marathon’s attorneys furnished Marathon under the provisions of the binding letter of intent. These arguments are without merit.
To set aside the attorney-client privilege of the documents St. Clair asserts are discover
*593
able, the record must show the communications were relevant to a matter of common interest among two or more clients and the communication was made by any of the clients to a lawyer, retained in common or consulted in common. There is nothing in the record to show St. Clair and Marаthon each retained Marathon’s attorneys as their common attorneys. Nor is there anything in the record to show consultation by Marathon and St. Clair in common with Marathon’s attorneys. There is nothing in the record to show an agreement for Marathon’s attorneys to render legal services to St. Clair. To the contrary, the record shows that St. Clam and Marathоn each had its own attorneys in negotiations leading up to the binding letter of intent. We conclude St. Clair’s arguments of joint representation or direct contractual duty do not withstand scrutiny.
See
Tex. R.Civ.Evid. 503(d)(5);
First Mun. Leasing Corp.,
Additionally, St. Clair’s third-party beneficiary of the legal services argument is without merit. The binding letter of intent does not show St. Clair and Marathon intended, either expressly or impliedly, that St. Clair wаs a third-party beneficiary of the legal services rendered by Marathon's attorneys. We find, as a matter of law, St. Clair did not prove joint relationship or a direct or third-party beneficiary relationship so it defeated Marathon’s prima facie showing of privilege.
G. Appellate In Camera Inspection
Finally, St. Clair contends the trial court based its order on an
in camera
factual determination, whiсh bars review by this court. As a reviewing court, we may conduct our own
in camera
inspection to determine whether a trial court properly applied the law of privilege to the documents.
Barnes,
We have conducted an
in camera
inspection of the documents. As a result of our inspection, we find Marathon must produce only ten documents. Six of the documents are not subject to privilege either under the attorney work product exemption or the attorney-client privilege.
1
We find the privilege and exemption do not apply because we cannot determine whether an attorney participated in the communications. Additionally, Marathon did not submit four of the documents identified in the privilege log.
2
Marathon has waived privilege on those four documents.
See Freeman v. Bianchi,
CONCLUSION
The trial court abused its discretion by ordering Marathon to produce the contested documents except for the ten documents previously mentioned. Marathon did not have an adequate remedy at law because the trial court erroneously ordered discovery of privileged documents.
Kavanaugh,
Notes
. The bates numbers for these six documents are: (1) PMIOC 001197-1198; (2) PMIOC 001244; (3) PMIOC 002776-2777; (4) PMIOC 003439; (5) PMIOC 003488; and (6) PMIOC 003743.
. The bates numbers for these four documents are: (1) PMIOC 000623; (2) PMIOC 000630; (3) PMIOC 000631-632; and (4) PMIOC 002216.
