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93rd Edition, June 1, 1993

Complete Document

Model Form of Voluntary Unit Operating Agreement

Includes all amendments and changes through Reaffirmation Notice , June 2000

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G10810 * W/D NO S/S
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Product Details:

  • Revision: 93rd Edition, June 1, 1993
  • Published Date: June 2000
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: American Petroleum Institute (API)
  • Page Count: 29
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:


The API Model Form of Voluntary Unit Operating Agreement and the companion Model Form of Voluntary Unit Agreement date back to the First Editions, January 1957. The First Editions were superseded by Second Editions, January 1961. The Third Editions were issued in January 1970. The revised editions have been prepared to update these model forms by making revisions found from experience to be desirable. The majority of production units formed in the United States in recent years utilized these suggested forms in whole or in part.

The design of the model forms is to aid in the accomplishment of voluntary unitization of oil and condensate reservoirs that are substantially developed in order to conduct some form of pressure maintenance, repressuring, waterflooding, or other cooperative forms of operation to increase ultimate recovery.

These suggested forms have been prepared by the Subcommittee on Unit Operations under administration of API's Executive Committee on Drilling and Production Practices. Being general in nature, these suggested forms require a certain amount of adaptation to conform to the conditions and requirements of particular units and to the laws of different states. The latter is true in regard to matters of execution, acknowledgements, and filing for record.

USERS ARE CAUTIONED that this suggested form may not contain all the provisions that may be required by parties to an actual agreement for unit operations. In addition, the form contains numerous provisions that must be completed by inserting appropriate time periods, number of parties, voting requirements, or dollar amounts and each party must determine appropriate inserts for its particular situation or application. This is especially critical with respect to the voting requirement relating to operation of the lease. Users of the model form or portions or variations thereof should seek the advice of counsel to ensure that the agreement reflects the actual intent of the parties and is proper under the applicable business circumstances. Use of the form or any portion or variation thereof shall be at the sole discretion, risk, and liability of the user parties. American Petroleum Institute disclaims any and all interests or liability whatsoever for loss or damages that may result from use of the form or portions or variations thereof.