Skip to main content

Notice to Lessees (NTLs)

Notices to Lessees and Operators (NTLs) are formal documents that provide clarification, description, or interpretation of a regulation or OCS standard; provide guidelines on the implementation of a special lease stipulation or regional requirement; provide a better understanding of the scope and meaning of a regulation by explaining BSEE interpretation of a requirement; or transmit administrative information such as current telephone listings and a change in BSEE personnel or office address. Letters to Lessees and Operators (LTLs) and Information to Lessees and Operators (ITLs) are also formal documents that provide additional information and clarification, or interpretation of a regulation, OCS standard, or regional requirement, or provide a better understanding of the scope and meaning of a regulation by explaining BSEE interpretation of a requirement.

To view expired or superseded NTLs, select a different NTL status and select submit.

NTL Number Document Summary Status Category Effective Date Posted Date
NTL 2008-G22 08-g22.pdf (106.03 KB)

This Notice to Lessees and Operators (NTL) provides the availability date of well data and information submitted to the Minerals Management Service (MMS) as described in NTL 2006-G16, effective July 15, 2006. Release of data and information to the public is required by 30 CFR 250.197.
MMS collects, verifies, and stores data and information by the well’s unique 12-digit American Petroleum Institute (API) number assigned by the MMS. MMS uses the data and information collected to make informed regulatory decisions based on complete and accurate well records.

NTL 2007-G12 07-g12.pdf (145.88 KB)

This Notice to Lessees and Operators (NTL) is issued pursuant to 30 CFR 250.103 and supersedes NTL No. 2005-G08, effective May 31, 2005. It updates the main telephone numbers and facsimile numbers for the Minerals Management Service (MMS) Gulf of Mexico OCS Region (GOMR) New Orleans, Lafayette, and Lake Jackson District offices and updates a regulatory reference.

NTL 2012-N05 ntl2012-n05.pdf (877.61 KB) Superseded
NTL 2011-N10 ntl2011-n10.pdf (47.07 KB)

This Notice to Lessees and Operators is being issued to distribute a recent decision by the Director of the Office of Hearings and Appeals that provides the agency interpretation of certain regulations governing the granting/denial of requests for Suspensions of Production (SOP).

NTL 2008-N05 ntl08-n05.pdf (297.32 KB)

Clarifies policies and procedures for submitting Oil Spill Financial Responsibility documents; adds new definitions to 30 CFR 253.3; provides guidance on how to determine if a facility is covered by the certificate of financial responsibility requirements. 

Active Financial Responsibility at 30 CFR 253, Oil Spill Prevention Act of 1990
NTL 2011-N06 ntl2011-n061.pdf (80.63 KB)

The purpose of this Notice to Lessees and Operators (NTL) is to provide updated information in the BOEMRE OCS Civil Penalties Program. This NTL replaces the assessment matrix provided in NTL No. 2007-N02. The Oil Pollution Act of 1990 (OPA 90) requires the Secretary of the Interior to adjust the maximum civil penalty to reflect any increases in the Consumer Price Index.

NTL 2007-G09 07-g09.pdf (117.66 KB)

This Notice to Lessees and Operators is issued pursuant to 30 CFR 250.103. It supersedes NTL No. 96-10, dated December 5, 1996. It provides contact and Paperwork Reduction Act information, updates regulatory citations, adds a definition, and makes minor technical amendments.

NTL 2004-G15 ntl2004-g15.pdf (27.59 KB)

Authority – This Notice to Lessees and Operators (NTL) is issued pursuant to regulations at 30 CFR 203.0 and §§ 203.40 through 203.48, which govern deep-gas royalty relief for Gulf of Mexico shallow-water leases. Purpose and Need for NTL – This NTL provides guidance and clarification to operators electing to exercise the option to replace the deep-gas provisions in the lease instrument (leases that were issued from 2001 through 2003) with the deep-gas royalty relief terms and conditions provided in the regulations mentioned above and effective May 3, 2004. Pursuant to 30 CFR 203.48 and NTL No. 2004-G13, you may exercise this option by providing a written notification of your decision to the Regional Supervisor for Production and Development before September 1, 2004.

NTL 2007-G26 07-g26-pdf.pdf (289.19 KB)

This Notice to Lessees and Operators (NTL) is issued pursuant to 30 CFR 250.103. It provides guidance to ensure that the design of new OCS platforms and related structures fully considers the specific environmental conditions at the platform location as required by 30 CFR 250.900(a).

NTL 2010-N10 10-n10.pdf (233.8 KB)

Informs lessees and operators of required statements, signed by company official, that it will conduct all authorized activities in compliance with applicable regulations, including Increased Safety Measures regulation at 75 FR 63346, when using BOPs or surface BOPs on floating facilities.

Expired General Requirements, Part 254 Oil Spill Response Requirements, Well Operations and Equipment
NTL 2010-P01 10-p01.pdf (664.84 KB)

NTL 2010-P01 superseded by NTL 2019-P01 (Hydrogen Sulfide)

This Notice to Lessees and Operators (NTL) supersedes NTL No. 2003-P05, Hydrogen Sulfide (H2S) Requirements. It establishes the National Association of Corrosion Engineers (NACE) Standard MROl 75-2003, "Standard Material Requirements, Metals for Sulfide Stress Cracking and Stress Corrosion Cracking Resistance in Sour Oilfield Environments," as representing best available and safest technology, provides further guidance on classifying an area for the presence of H2S, includes guidance on H2S detection, updates regulatory citations, and includes a guidance document statement.

NTL 2011-N08 11-n08.pdf (453.36 KB)

Temporary Helideck Closures - This Notice to Lessees and Operators (NTL) offers guidance on the recoemmended safety practice of visual signaling and notification of a temporary helideck closure.

NTL 2000-N07 ntl2000-n07wnn.pdf (544.22 KB)

UNITED STATES DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT SERVICE NTL No.2000-N07 Issue Date: November 9, 2000 Effective Date: May 1, 2001 NOTICE TO LESSEES AND OPERATORS OF FEDERAL OIL AND GAS LEASES ON THE OUTER CONTINENTAL SHELF Well Naming and Numbering Standards When this Notice to Lessees and Operators (NTL) t

NTL 2000-N05 ntl2000-n05.pdf (524 KB)


NTL 2011-N04 11-n04.pdf (147.94 KB)

This Notice to Lessees and Operators (NTL) offers guidance on the procedures to follow if flare/vent meters are required at your facility under 30 CFR 250, Subpart K, Oil and Gas Production Requirements. This NTL replaces and supersedes NTL No. 2010-N09.

NTL 2002-N03 2002-n03hfw2-pdf.pdf (94.74 KB)

The Minerals Management Service (MMS) is sponsoring the "2nd International Workshop on
Human Factors in Offshore Operations," April8-10, 2002, in Houston, Texas. This workshop
(HFW2002) will build oli the information presented at the 1st International Workshop on Human
Factors in Offshore Operations which was sponsored by MMS in 1996. HFW2002 provides the
opportunity for regulatory agencies, certification bodies, and industry to discuss and review
human factors tools that can be applied effectively to improve safety, quality, and reliability of
offshore operations and reduce incidents. White papers from the working groups at the 2 ~ day
workshop will discuss the folluwing issues:
Inclusion of Human Factors in Incident Investigation
Reduction of Human Error in New Systems
Reduction of Human Error in Existing Systems
Solving Human Factor Issues as Applied to the Workforce
Using Human Factor Principles in Management Practices and Policies
Effective Application of Behavioral Based Processes

NTL 2011-G01 11-g01.pdf (40.64 KB)

This Notice to Lessees and Operators (NTL) supersedes expired NTL No. 2010-G04, effective June 1, 2010, on this subject. It provides guidance on using either e-mail or the eWell Permitting and Reporting System to report hurricane and tropical storm effects information, specifies the information included in the various hurricane and tropical storm reports, and makes minor administrative amendments.

NTL 2011-N09 11-n09.pdf (644.26 KB)

The purpose of this Notice to Lessees and Operators (NTL) is to clarify the policies, procedures and requirements for OCS lessees and operators as included in 30 CFR 250, Subpart S regulations.

NTL 2004-N01 04-n01civilpenalty-pdf.pdf (108.69 KB) Superseded
NTL 2002-N05 02-n05-fandb-wkshop-pdf.pdf (98.26 KB)

The Minerals Management Service is sponsoring the International Workshop: Fire & Blast Considerations in the Future Design of Offshore Facilities, to be held on June 12-14, 2002 in Houston, Texas. The offshore engineering community relies on recommended practices and standards to characterize and design facilities for hydrocarbon explosions and fires. A vast amount of research has been completed, leading in some instances to fire and blast design practices that are different from that found in current guidelines. The workshop will also discuss the current work to update API RP 2A for fire and blast, as well as the United Kingdom Offshore Operators Association project to update the UK Health and Safety Executive's fire and blast guidance document.

NTL 2002-N04 02-n04awards-pdf.pdf (69.07 KB)

The 2002 Minerals Management Service (MMS) Industry Awards Program and Luncheon are
scheduled for Thursday, April 11, 2002, at the Hotel Inter-Continental Houston. This is the 19th
year that MMS has honored outstanding companies for their exemplary safety and pollution
prevention records, and the fourth year for our industry awards program.

NTL 2001-N02 01-n02mms128rev1-pdf.pdf (180.21 KB)

The Minerals Management Service (MMS) regulations (30 CFR 250.11 02(b )(3)) require lessees/operators to conduct well tests at least once every 6 months for each producing completion and submit the results on form MMS-128, Semiannual Well Test Report. Currently, most operators comply with this requirement by completing and submitting numerous paper copies of form MMS-128. Following a successful pilot program, MMS is now prepared to accept these data electronically from all interested operators.

NTL 2010-P05 10-p05.pdf (93.44 KB)

Notice of report "Decommissioning Cost Update for Removing Pacific OCS Region Offshore Oil and Gas Facilities, 2010".  The report estimates cumulative lease liabilities for the region and supports decisions regarding supplemental bonding requirements.

Rescinded Decommissioning Activities
NTL 2002-N02 ntl-2002-n02.pdf (5.86 MB)

This NTL supersedes NTL 99-04N and amends the guidelines for applying for royalty relief. As we stated in earlier NTLs on royalty relief, we expect to periodically update these guidelines to reflect our experience in processing applications. This update makes these guidelines consistent with the  new regulations for discretionary deepwater royalty relief which we published in the Federal Register on January 15, 2002 (67 FR 1862).

NTL 2010-P04 10-p04.pdf (109.06 KB)

Announces accident investigation results of pipeline damage caused by workboats dragging grappling hooks to try and retrieve a mooring buoy and its chain.  Reiterates warning sign criteria in prior NTL will remain in effect, and reminds lessees and operators that all signage must be properly displayed to boat traffic and maintained in legible condition.

Active General Requirements
NTL 2002-N09 02-no9wksp-pdf.pdf (474.24 KB)

The Minerals Management Service (MMS) has scheduled two half-day workshops to discuss the upcoming revisions of the MMS forms for well applications and reporting. The Gulf of Mexico OCS Regional (GOMR) Office will host the workshops in New Orleans on September 19 and in Houston on September 26

NTL 2002-N06 02-n06-cranes-pdf.pdf (380.55 KB)

This Notice to Lessees and Operators (NTL) is issued to address certain safety concerns and questions recently brought to our attention with respect to cranes installed on fixed offshore platforms. Regulations at 30 CFR 250.108 address cranes and other material handling equipment on fixed offshore platforms. Section 250.108(a)(l) incorporates by reference the American Petroleum Institute's Recommended Practice for Operation and Maintenance of Offshore Cranes (API RP 2D), Fourth Edition, into the Minerals Mangement Service (MMS) regulations. Section 250.1 08(a)(2) requires that inspection, testing, and maintenance records must be kept at the OCS facility for at least 2 years.

NTL 2008-N08 2008-n08-pdf.pdf (57.68 KB)

Due to tlscal year-end closeout, MMS will disable Pay.Gov forms from 12:01 a.m., Saturday, September 27, 2008; to 11:59 p.m. Tuesday, September 30, 2008. This outage will aflect Pay.Gov interactive payments made through eWelL

NTL 2009-P07 09-p07.pdf (367.62 KB)

This NTL provides guidance on evaluating and managing wells that have casing pressure. The policy changes set forth in this NTL reduce the paperwork burden concerning the reporting of casing pressure conditions, the number of departure requests, and the frequency of casing pressure diagnostic testing. On page 5, it provides guidance on handling the transition from the previous NTL to this NTL.

NTL 2009-P06 09-p06.pdf (103.19 KB)

Informs lessees and operators of requirements and procedures for notifying MMS of changes in leases, pipelines, or ROW ownership or operatorship whether by name change or merger.

Active General Requirements, Pipelines and Pipeline Rights-of-Way
NTL 2009-P05 09-p05.pdf (153.2 KB)

Provides information on reporting requirements for submittals made to satisfy regulations at 30 CFR 250, Subpart L (30 CFR 250.1202 -- 250.1204).  States preferred method of submittal is e-mail.

Active Production Measurement, Surface Commingling & Security
NTL 2008-N03 2008-n03-pdf.pdf (173.92 KB)

This Notice to Lessees and Operators (NTL) clarifies current policy and procedures by specifying your responsibilities as a lessee in implementing MMS 's performance-based training regulation, 30 CFR 250 Subpart 0 Well Control and Production Safety Training. Since going into etiect October 15, 2002, MMS has monitored industry compliance with this rule by conducting numerous audits, interviews, and tests at both the company level and on an individual basis. The majority of agency efforts have focused on the use of audits. If, during an audit, the MMS audit team finds a deficiency in a lessee's training plan, an Incident of Noncompliance (INC) is issued.

NTL 2008-N01 2008-n01-pdf.pdf (62.6 KB)

The 2008 Minerals Management Service (MMS) Industry A wards Program and Luncheon are scheduled for Thursday, April 10, 2008, at the Hilton Americas Houston Hotel, Houston, Texas.
This is the 25'h year that MMS has honored outstanding companies for their exemplary safety and
pollution prevention records, and the 1om year for our industry awards program.

NTL 2009-N12 09-n12.pdf (97.93 KB)

Clarifies procedures for appeal of decisions and orders issued by MMS.  Contains advice for both informal resolution and formal appeal.

Active 30 CFR Part 290
NTL 2009-P04 09-p04.pdf (292.55 KB)

Offers guidance on procedures regarding the permitting process for decommissioning platforms, pipelines and other related oil and gas facilities.   Notifies industry that 30 CFR 250.107 safety and health measures, including maintaining equipment and work areas in safe condition, remains in effect during decommissioning.

Superseded Decommissioning Activities, General Requirements
NTL 2009-N08 09-n08.pdf (129.45 KB)

Notifies lessees and operators of fees for pre-production royalty relief applications and possible audits, as part of DOI policy to encourage production of marginal resources.

Active Part 203 Royalty Relief Activities
NTL 2006-G01 06-g01.pdf (207.95 KB)

Minerals Management Service (MMS) is offering a royalty relief program for hurricane projects in the Gulf of Mexico OCS pursuant to 30 CFR 203.1. To expedite the application review process, MMS will assume the pre-qualification requirements stated at 30 CFR 203.80 are met by applicants making requests under this initiative. Applications will be considered if the approval of royalty relief would meet the objective of the endof-life program (see 30 CFR 203.51, 203.83 and 203.84). End-of-life program guidelines for processing applications have been modified to accommodate characteristics unique to hurricane projects. This NTL provides guidance for preparing a complete application. "Hurricane project" is defined as a proposal to correct damage caused by Hurricane Katrina or Hurricane Rita. A project may consist of wells, platforms, pipelines, or other structures which were producing or capable of producing before the hurricane from one or more oil and gas reservoirs, located on one or more leases. The incentive is intended to encourage the production of marginal oil and gas reserves that are shut in due to hurricane damage, and for which resumption of production would not be economical in the absence of royalty relief.

Active Hurricane and Tropical Storm Effects Reports
NTL 2006-N05 2006-n05-costrecoverypostsurnamingsol8-23-06-2-pdf.pdf (51.13 KB)

This Notice to Lessees and Operators and Pipeline Right-of-way Grant Holders (NTL) is issued pursuant to 30 CFR 250.103. This NTL is also issued pursuant to 30 CFR 251.3, to permitees that conduct geological and geophysical explorations on the Outer Continental Shelf (OCS), and pursuant to 30 CFR 280.3(c) to permitees that conduct operations other than oil, gas, and sulphur on the OCS.

NTL 2009-N03 09-n03.pdf (69.46 KB)

Notice to protect Federal production of minerals against loss or theft.  Reminds operators and platform and rig personnel that "theft or mishandling" includes tampering with or bypassing any component of the royalty measurement facility, and falsifying production measurements. 

Active General Requirements
2006-N01 2006awardsluncheon-pdf.pdf (53.54 KB)

 2006 Industry Awards Program and Luncheon - January 1, 2006

NTL 2009-N02 09-n02.pdf (108.99 KB)

Clarifies that a request for suspension received after the lease term has expired will be interpreted as a request for lease reinstatement, and that OCSLA does not give MMS authority to revive or reinstate lessees after they have expired.  A Memorandum by SOL supports this result. 

Active Plans and Information
NTL 2001-N03 2001-n03-pdf.pdf (120.31 KB)

This Notice to Lessees and Operators (NTL) supersedes NTL No. 2000-N03. It restates Minerals Management Service policy during the transition period of the revised 30 CFR 250, Subpart 0, training regulations published in the Federal Register on August 14, 2000 (65 FR 49485). This NTL also addresses questions and concerns that have been raised regarding § 250.1504 on alternative training methods.

NTL 2002-N08 02-no8-bop-workshop-pdf.pdf (64.58 KB)

The Minerals Management Service (MMS) in cooperation with the Global Petroleum Research Institute (GPRI) and the Offshore Technology Research Center (OTRC) of Texas A&M University, announces an afternoon workshop on Deepwater Well Intervention on August 15, 2002, in Houston Texas. The workshop provides an opportunity to hear from the project managers of the Texas A&M Deepwater Well Intervention Joint Venture.

NTL 2002-N11 02-n11reschedws-pdf.pdf (103.73 KB)

Due to weather conditions, the Minerals Management Service (MMS) canceled the MMS Well Applications and Reporting Forms Workshop that was scheduled for September 26 in Houston, Texas (announced in NIL 2002-N09). The Gulf of Mexico OCS Region was hosting the workshop to discuss the upcoming revisions to the forms

NTL 2002-N07 02-n07-set-asisde-pdf.pdf (24.33 KB)

Under Section (b)(7) of 43 U.S.C 1337 (Section 8(b)(7) of the OCS Lands Act, as amended), each offshore lease issued after September 18, 1978, has a 20 percent small refiner offer provision. Under this provision, lessees must offer small or independent refiners 20 percent of the crude oil, condensate, and natural gas liquids produced on each lease, at the market value and point of delivery applicable to Federal royalty oil. This 20 percent set aside is in addition to the amounts available under the Federal royalty oil program.

NTL 2012-G01-JOINT 2012-joint-g01-pdf.pdf (1.55 MB)

Guidance on how to implement monitoring programs to minimize risks of vessel strikes of protected species and report observations of injured or dead animals.   In place of formal observer program, the NTL provides guidelines to identify and avoid injury to marine mammals and sea turtles by reducing speed and maintaining appropriate distances from protected species.

Active General Requirements, Plans and Information
NTL 2012-G02 - Joint 2012-joint-g02-pdf.pdf (5.85 MB)

This NTL supersedes and replaces NTL No. 2007-G02. It does not introduce any new types of mitigation measures; however, it clarifies how you should implement seismic survey mitigation measures, including ramp-up procedures, the use of a minimum sound source, airgun testing and protected species observation and reporting. The measures contained herein apply to all onlease/ancillary activity surveys you conduct under 30 CFR 550 and all off-lease surveys you conduct under 30 CFR 551.

NTL 2012-N01 2012-n01-pdf.pdf (121.75 KB)

The purpose of this NTL is to clarify the definitions of the maximum anticipated surface pressure for the completion case (MASPcc), expected surface pressure for the completion case (ESPcc), and the estimated shut-in tubing pressure (SITP) prior to actual production.  This NTL also establishes the conditions when you may use an oil gradient and when you must use a gas gradient to calculate the MASPcc, ESPcc, and the estimated SITP.

NTL 2012-N06 ntl2012-n06.pdf (971.3 KB)

Provides guidance and information on preparing and submitting regional Oil Spill Response Plans for owners and operators of oil handling, storage, or transportation facilities located seaward of the coast line.

Active Part 254 Oil Spill Response Requirements
NTL 2012-N07 ntl2012-n07.pdf (750.88 KB)

This NTL is intented to provide clarification about the type of information you may provide for compliance with written follow-up report requirements in 30 CFR 254.46(b)(2).

Clarifies what types of information should be provided to BSEE in in written, follow up reports for oil spills or releases from platforms, vessels, or pipelines, schedules for submitting information.

Active Part 254 Oil Spill Response Requirements