U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 30, 2025

All TitlesTitle 43Chapter IIPart 3130Subpart 3137 - Subpart 3137—Unitization Agreements—National Petroleum Reserve-Alaska

GENERAL
§ 3137.10 - What benefits do I receive for entering into a unit agreement?
§ 3137.11 - What consultation must the BLM perform if lands in the unit area are owned by a regional corporation or the State of Alaska?
§ 3137.5 - What terms do I need to know to understand this subpart?

APPLICATION
§ 3137.15 - If the Federal lands constitute less than 10 percent of the lands in the proposed unit area, is the unit agreement subject to Federal regulations or approval?
§ 3137.20 - Is there a standard unit agreement form?
§ 3137.21 - What must I include in an NPR-A unit agreement?
§ 3137.22 - What are the size and shape requirements for a unit area?
§ 3137.23 - NPR-A unitization application.
§ 3137.24 - Why would BLM reject a unit agreement application?
§ 3137.25 - How will the parties to the unit know if BLM approves the unit agreement?
§ 3137.26 - When is a unit agreement effective?
§ 3137.27 - What effect do subsequent contracts or obligations have on the unit agreement?
§ 3137.28 - What oil and gas resources of committed tracts does the unit agreement include?

DEVELOPMENT
§ 3137.40 - What initial development obligations must I define in a unit agreement?
§ 3137.41 - What continuing development obligations must I define in a unit agreement?

OPTIONAL TERMS
§ 3137.50 - What optional terms may I include in a unit agreement?
§ 3137.51 - Under what conditions does BLM permit multiple unit operators?
§ 3137.52 - How may I modify the unit agreement?

UNIT AGREEMENT OPERATING REQUIREMENTS
§ 3137.60 - As the unit operator, what are my obligations?
§ 3137.61 - Change in unit operators.
§ 3137.62 - What are my liabilities as a former unit operator?
§ 3137.63 - What are my liabilities after BLM approves me as the new unit operator?
§ 3137.64 - As a unit operator, what must I do to prevent or compensate for drainage?

DEVELOPMENT REQUIREMENTS
§ 3137.70 - What must I do to meet initial development obligations?
§ 3137.71 - What must I do to meet continuing development obligations?
§ 3137.72 - What if reasons beyond my control prevent me from meeting the initial or a continuing development obligation by the time the unit agreement specifies?
§ 3137.73 - What will BLM do after I submit a plan to meet continuing development obligations?
§ 3137.74 - What must I do after BLM approves my continuing development obligations plan?
§ 3137.75 - May I perform additional development outside established participating areas to fulfill continuing development obligations?
§ 3137.76 - What happens if I do not meet a continuing development obligation?

PARTICIPATING AREAS
§ 3137.80 - What are participating areas and how do they relate to the unit agreement?
§ 3137.81 - What is the function of a participating area?
§ 3137.82 - What are productivity criteria?
§ 3137.83 - What establishes a participating area?
§ 3137.84 - What must I submit to BLM to establish a new participating area, or modify an existing participating area?
§ 3137.85 - What is the effective date of a participating area?
§ 3137.86 - What happens to a participating area when I obtain new information demonstrating that the participating area should be larger or smaller than previously determined?
§ 3137.87 - What must I do if there are unleased Federal tracts in a participating area?
§ 3137.88 - What happens when a well outside a participating area does not meet the productivity criteria?
§ 3137.89 - How does production allocation occur from wells that do not meet the productivity criteria?
§ 3137.90 - Who must operate wells that do not meet the productivity criteria?
§ 3137.91 - When will BLM allow a well previously determined to be a non-unit well to be used in establishing or modifying a PA?
§ 3137.92 - When does a participating area terminate?

PRODUCTION ALLOCATION
§ 3137.100 - How must I allocate production to the United States when a participating area includes unleased Federal lands?

OBLIGATIONS AND EXTENSIONS
§ 3137.110 - Do the terms and conditions of a unit agreement modify Federal lease stipulations?
§ 3137.111 - When will BLM extend the primary term of all leases committed to a unit agreement or renew all leases committed to a unit agreement?
§ 3137.112 - What happens if I am prevented from performing actual or constructive drilling or reworking operations?

CHANGE IN OWNERSHIP
§ 3137.120 - As a transferee of an interest in a unitized NPR-A lease, am I subject to the terms and conditions of the unit agreement?

UNIT TERMINATION
§ 3137.130 - Under what circumstances will BLM approve a voluntary termination of the unit?
§ 3137.131 - What happens if the unit terminated before the unit operator met the initial development obligations?
§ 3137.132 - What if I do not meet a continuing development obligation before I establish any participating area in the unit?
§ 3137.133 - After participating areas are established, when does the unit terminate?
§ 3137.134 - What happens to committed leases if the unit terminates?
§ 3137.135 - What are the unit operator's obligations after unit termination?

APPEALS
§ 3137.150 - How do I appeal a decision that BLM issues under this subpart?
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