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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To view expired or superseded NTLs, select a different NTL status and select submit.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 2006-G17 ntl2006-g17.pdf (21.99 KB)

This Notice to Lessees and Operators (NTL) is issued pursuant to 30 CFR 250.103. It makes provisions for you to conduct certain platform operations before you receive approval from the Minerals Management Service (MMS) Gulf of Mexico OCS Region (GOMR).

Expired
NTL 2006-G16 ntl2006-g16.pdf (534.2 KB)

The Minerals Management Service (MMS) Gulf of Mexico OCS Region (GOMR) issued Notice to Lessees and Operators (NTL) No. 2006-G16 (Effective Date: July 15, 2006) which redefines the procedures on how lessees/operators submit well records required by 30 CFR 250.468 and 469, clarifies the specific well records you must submit, the required submittal dates of the various well records, and the correct locations where you must send these well records.

Superseded
NTL 2006-G15 ntl2006-g15.pdf (100.8 KB)

This NTL is issued pursuant to 30 CFR 250.103 and provides guidance for submitting OCS plans required by 30 CFR 250, subpart B, to the Minerals Management Service (MMS) GOMR. This NTL, along with NTL No. 2006-G14, “Information Requirements for Exploration Plans and Development Operations Coordination Documents,” supersedes NTL No. 2003-G17. This NTL provides guidance on changing approved or pending Exploration Plans (EP’s) and Development Operations Coordination Documents (DOCD’s), the number of copies required, electronic submission, and the submittal address.

Expired
NTL 2006-G14 ntl2006-g14.pdf (255.76 KB)

This NTL is issued pursuant to 30 CFR 250.103 and provides guidance on the information requirements for OCS plans required by 30 CFR 250, subpart B. This NTL, along with NTL No. 2006-G15, “Guidance for Submitting Exploration Plans and Development Operations Coordination Documents,” supersedes NTL No. 2003-G17.

Superseded
NTL 2006-G13 ntl2006-g13.pdf (26.7 KB)

This Notice to Lessees and Operators (NTL) is issued pursuant to 30 CFR 250.103. It makes provisions for you to conduct certain platform operations before you receive approval from the Minerals Management Service (MMS) Gulf of Mexico OCS Region (GOMR). Similar guidance was given in superseded NTL No. 2005-G18, effective October 7, 2005, as a result of the workloads incurred by the MMS GOMR because of Hurricanes Katrina and Rita. Since these workloads have not yet subsided, the MMS GOMR believes it necessary to reissue this guidance.

Expired
NTL 2006-G12 ntl2006-g12.pdf (77.6 KB)

This Notice to Lessees and Operators (NTL) is issued pursuant to 30 CFR 250.103 and supersedes the Letters to Lessees (LTL) dated November 8, 1990, and June 21, 1991, regarding preliminary activities. It provides guidance and clarification on conducting ancillary activities in the Minerals Management Service (MMS) Gulf of Mexico OCS Region (GOMR).

Expired
NTL 2006-G11 ntl2006-g11.pdf (47.02 KB)

This Notice to Lessees and Operators (NTL) is issued pursuant to 30 CFR 250.103 and supersedes NTL No. 2005-G15, effective September 21, 2005, on this subject. It modifies Form MMS-132, Hurricane and Tropical Storm Evacuation and Production Curtailment Statistics, to provide for statistics regarding the number of platforms and drilling rigs not evacuated, and provides an electronic means of submitting Form MMS-132 and the facility shut-in report.

Superseded
NTL 2006-G10 ntl2006-g10.pdf (152.77 KB)

This Notice to Lessees and Operators (NTL) is issued pursuant to 30 CFR 250.103 and provides guidance on the information you must submit with your Form MMS-123, Application for Permit to Drill (APD), to demonstrate the fitness of any moored drilling rig you will use to conduct operations in the Gulf of Mexico (GOM) OCS during the 2006 hurricane season. As required by 30 CFR 250.417(a), this information must demonstrate that the associated moored drilling rig is capable of performing at the proposed drilling location. The Minerals Management Service (MMS) Gulf of Mexico OCS Region (GOMR) will use the recommendations in the American Petroleum Institute’s (API) newly developed Recommended Practice 95F, Interim Guidance for Gulf of Mexico MODU Mooring Practice – 2006 Hurricane Season (API RP 95F), to guide our review and evaluation of the information and data that demonstrate the moored rig’s capability to perform at the proposed location.

Expired
NTL 2006-G09 ntl2006-g09.pdf (32.27 KB)

This Notice to Lessees and Operators (NTL) is issued pursuant to 30 CFR 250.103 and provides guidance on the information you must submit with your Form MMS-123, Application for Permit to Drill (APD) to demonstrate the fitness of any jack-up drilling rig you will use to conduct operations in the Gulf of Mexico (GOM) OCS during the 2006 hurricane season. As required by 30 CFR 250.417(a), this information must demonstrate that the associated jack-up drilling rig is capable of performing at the proposed drilling location. The Minerals Management Service (MMS) Gulf of Mexico OCS Region (GOMR) will use the recommendations in the American Petroleum Institute’s (API) newly developed Recommended Practice 95J, Gulf of Mexico Jackup Operations for Hurricane Season – Interim Recommendations (API RP 95J), to guide our review and evaluation of the information and data that demonstrate the jack-up rig’s capability to perform at the proposed location.

Expired
NTL 2006-G06 ntl2006-g06.pdf (96.2 KB)

This Notice to Lessees and Operators (NTL) supersedes NTL No. 2005-G22, issued November 02, 2005. It is issued pursuant to 30 CFR 250.103 and notifies you to resume the submission of Well Records as described in NTL No. 2004 G-07 and NTL No. 2004
G-07 Addendum beginning April 01, 2006 to the following address:

Expired
NTL 2006-G05 ntl2006-g05.pdf (79.56 KB)

This Notice to Lessees and Operators (NTL) supersedes NTL No. 2004-G22, effective December 1, 2004. It provides a new schedule for the drilling window program. The Minerals Management Service (MMS) Gulf of Mexico OCS Region (GOMR), after consultation with the U.S. Air Force, established a drilling window program in 1991 for exploratory activities on oil and gas leases that were obtained through Lease Sales Nos. 79, 94, and 116 and that contain Lease Stipulation No. 5. In accordance with this lease stipulation, the drilling window program ensures that exploration activities can be conducted predictably, orderly, and safely without interfering with scheduled military activities or jeopardizing the national defense mission.

Expired
NTL 2006-G02 ntl2006-g02.pdf (17.35 KB)

This Notice to Lessees and Operators (NTL) is issued pursuant to 30 CFR 250.103 and 30 CFR 250.175(a) to provide guidance to our existing authority for approving requests for lease or unit Suspensions of Operations (SOO’s) based on rig delays and to implement a temporary policy for granting SOO’s based on a lack of rig availability and for unanticipated time frames needed to secure long lead equipment such as high pressure/temperature tubulars and wellheads.

Expired
NTL 2009-G40 09-g40.pdf (191.23 KB)

Announces changes in prior NTL 2000-G20 to broaden scope to cover all high-density Deepwater benthic communities, defines Deepwater as 300 meters not 400 meters, increases the separation distance from muds and cuttings discharge from 1500 to 2000 feet and clarifies conditions of approval, and provides for additional 1000-foot buffer area around benthic communities beyond maximum anchor areas.  Clarifies that the NTL applies to pipe-lay vessels and chains, with option to reduce the distance requirements if no benthic communities actually exist in areas of impact.

Active Plans and Information
NTL 2009-G39 09-g39.pdf (217.31 KB)

Provides and consolidates guidance for avoidance and protection of biologically sensitive features and areas (e.g., coral reefs) when conducting OCS operations in water depths of less than 300 meters (984 feet).   Clarifies requirements to review existing and future EPs and DOCDs for "bottom disturbances" caused by use of anchors, chains, cables, wire ropes and pipelines, and to observe "no activity zones" identified by NOAA Fisheries.  The NTL is more protective because it changes the applicable water depth for protective measures from 400 meters to 300 meters.

Active Plans and Information
NTL 2009-G26 09-g26.pdf (51.83 KB)

Notice to industry that USAF communication seven GOM towers require clear lines of sight from one to another, and be kept free of electromagnetic interference.  To accomplish these goals, no activities will be allowed within a 500-radius of towers sites, or within 100 feet of the centerline of a line of sight between the towers.

Active Plans and Information
NTL 2009-G36 09-g36.pdf (73.34 KB)

The purpose of this NTL is to authorize the use of the Barrier Concept as the basis for using alternate procedures or equipment in the safety systems for subsea production operations and to clarify the differences between topsides and subsea production operation.

Rescinded
NTL 2009-G35 09-g35.pdf (112.28 KB)

Provides guidance and instructions on disposal of E&P waste, worker safety when handling waste, and contents of applications to dispose of or store E&P wastes.   Includes worker safety guidelines for handling NORM waste when above background levels, and requires written disclosure of the lease number, area, block, and well number of any disposal wells.

Active Pollution Prevention and Control
NTL 2009-G34 09-g34.pdf (69.29 KB)

Provides clarification on procedures for conducting ancillary activity, including at least 15 days' written notice to the regional office before initiating ancillary activity such as  deploying air guns or seismic arrays in water depths of 200 meters or greater; creating bottom disturbances, independent of water depth, including ocean bottom cable surveys, and time lapse (4D) surveys; and geotechnical evaluation involving piston/gravity-coring or the recovery of sediment specimens by grab-sampling or other similar technique, and dredging of the seafloor.

Active Plans and Information
NTL 2009-G33 09-g33.pdf (554.89 KB)

Clarifies definitions of sidetrack and bypass and provides instructions, exhibits, and guidance for naming subsea wells, completions, and wellbores.  Makes administrative and formatting changes to prior NTL.

Active General Requirements
NTL 2009-G32 09-g32.pdf (16.77 KB)

Updates policy on platform inspection intervals, including guidance on conducting corrosion assessments, regulatory and document references and revises contact information for Gulf Regional office of Structural and Technical Support.

Active General Requirements
NTL 2009-G30 09-g30.pdf (372.3 KB)

Describes inspections to conduct and reports to prepare to address known and potential damages to OCS platforms and other floating structures (above and below waterline), disruption to and resumption of production operations, MODUs, subsea production safety systems, and pipelines caused by future Hurricanes or major storms.  

Active Hurricane and Tropical Storm Effects Reports, Oil & Gas Production Safety Systems, Pipelines and Pipeline Rights-of-Way, Platforms and Structures
NTL 2009-G28 09-g28.pdf (180.1 KB)

Provides guidance on submitting alternate procedure and equipment departure requests from regulations at 30 CFR 250 Subpart J, focusing on pipeline pre-testing applications for valves,  pumps, and redundant pressure safety devices associated with  subsea tiebacks.

Active General Requirements, Pipelines and Pipeline Rights-of-Way
NTL 2009-G27 09-g27.pdf (196.97 KB)

Clarifies policy for lessees and operators that revise EPs and DOCDs to change approved anchor patterns or anchor areas, and provides guidance for sidetrack wells.  Sets forth information to be submitted with change requests, including types of drilling rigs, vessels, or platforms, the surface location, whether the mineral is oil or gas, and emission of air pollutants during drilling and production.  Changes of anchor locations of 500 feet or more require advance approval of anchor array patterns.

Active Plans and Information
NTL 2009-G38 09-g38.pdf (230.68 KB)

UNITED STATES DEPARTMENT OF THE INTERIOR MINERALS MANAGEMENT SERVICE GULF OF MEXICO OCS REGION NTL No. 2009-G38 Effective Date: December 1, 2009 Expiration Date: December 1, 2010 NOTICE TO LESSEES AND OPERATORS OF FEDERAL OIL AND GAS LEASES IN THE OUTER CONTINENTAL SHELF, GULF OF MEXICO OCS REGION Drilling Windows, Eas

Superseded
NTL 2009-P08 09-p08.pdf (116.64 KB)

This notice supersedes Notice to Lessees and Operators (NTL) 2003-06.
There have been incidents in the past involving helicopters landing on temporarily closed helidecks on platforms in the Pacific OCS Region. In the interest of safety, we recommend that the following corrective actions be taken. We recommend implementation and continued application of these procedures pursuant to Title 30 Code of Federal Regulations (CFR) Section 250.107(b): "You must immediately control, remove, or otherwise correct any hazardous oil and gas accumulation or other health, safety, or fire hazard."

Superseded
NTL 2009-G24 09-g24.pdf (180.14 KB)

Provides guidance on use of SCADA systems for electronic monitoring of facilities and operating conditions, including wind speeds and downstream components (flowlines, pipelines, and separators located between the hydrocarbon sources and sensing points).  Sets forth approval conditions for when a SCADA system will be permitted to shut-in and restart essential operations.

Active Oil & Gas Production Safety Systems
NTL 2009-G23 09-g23.pdf (293.63 KB)

Guidance on how to avoid compromising the structural integrity of platforms prior to relocation; applies to both fixed and floating platform rigs.  If the platform rig trips any of the platform assessment initiators listed API RP 2A-WSD, the operator must perform a platform assessment in accordance with 30 CFR 250.920(s).

Active Platforms and Structures
NTL 2009-G21 09-g21.pdf (128.15 KB)

This Notice to Lessees and Operators (NTL) supersedes NTL No. 2002-G10, effective September 4, 2002, on this subject. It makes minor technical corrections; updates regulatory citations; adds standard conditions for well operations associated with drilling, workovers, completions, recompletions, temporary abandonment, and permanent plugging; and includes a guidance document statement.

Rescinded
NTL 2009-G20 09-g20.pdf (18.15 KB)

This Notice to Lessees and Operators (NTL) supersedes NTL No. 2004-G04, dated March 7, 2004. It makes minor technical amendments and includes a guidance document statement.

Expired
NTL 2009-G19 09-g19.pdf (91.94 KB)

Updates regulatory citations; adds guidance for level safety high (LSH) sensors on atmospheric vessels, including design and maintenance criteria for the sensor bridle to prevent fluids of different densities from impacting sensor functionality.

Active Pollution Prevention and Control
NTL 2009-G18 09-g18.pdf (158.19 KB)

Provides guidance on how to install pressure safety high sensors or provide over-pressure and under-pressure  protection to vessels in accord with API Recommended Practice 14C.  Defines the term production train to include vessels not separated by pressure control valves or extensive piping that would cause a drop across a system of more than 10% or 50 psi, whichever is greater. 

Active Oil & Gas Production Safety Systems
NTL 2009-G17 09-g17.pdf (22.69 KB)

Clarifies the process for establishing a designated safe welding area for each particular rig as part of a written Welding Plan; updates terminology for "welding" and contact information for submitting welding plans to District Supervisors of MMS.

Active General Requirements
NTL 2009-G16 09-g16.pdf (107.98 KB)

This Notice to Lessees and Operators (NTL) supersedes NTL No. 2009-G08, effective June 1, 2009, on this subject. It changes the expiration date, provides a warning regarding failure to follow the guidance and requirements in the NTL, and revises the Paperwork Reduction Act statement.

Superseded
NTL 2009-G15 09-g15.pdf (20.47 KB)

Updates prior NTL to specify requirement to submit pipeline location data on compact disks, and revokes aspects of NTL No. 98-09 that facilitated submission of "as-Built" location data before the construction report.

Active Pipelines and Pipeline Rights-of-Way
NTL 2009-G14 09-g14.pdf (268.02 KB)

Describes functional responsibility by District and Regional offices for all MMS regulations beginning with General Requirements

Active Platforms and Structures, Pollution Prevention and Control
NTL 2009-G13 09-g13.pdf (144.28 KB)

Guidance on evaluation of tie-downs on OCS production platforms to secure drilling and workover rigs, permanent equipment, and facilities during Hurricane season.  This NTL is based on industry document API Recommended Practice 2TD, and efforts to reduce tie-down failures during heavy storms. 

Active Hurricane and Tropical Storm Effects Reports, Platforms and Structures, Pollution Prevention and Control
NTL 2009-G11 09-g11.pdf (175.35 KB)

Updates regulatory citations pertaining to operations on floating drilling rigs, and the disconnect of marine risers during routine function test of blind-shear rams, based on recent 'near miss' event that could have threatened loss of well control.  Requires changes to control panel to ensure that LMRP disconnect process occurs only in response to deliberate acts.

Active General Requirements
NTL 2009-G07 09-g07.pdf (16.71 KB)

Notice to specify the location of the choke and kill lines serving blowout preventer (BOP) stacks. Only those regulations pertaining to Oil & Gas Drilling Operations currently specify the exact location of choke lines as above the bottom ram in the stack.  MMS reiterates that no approvals of APMs will be made for any type of oil and gas drilling or well operations.  States District offices may approve installations of kill lines only below the bottom ram, upon submission of schematic drawing of BOP stack and MMS design evaluation. 

Active Oil and Gas Drilling Operations, Oil and Gas Well Completion Operations, Oil and Gas Well Workover Operations, Sulfur Production Operations
NTL 2009-G05 09-g05.pdf (39.84 KB)

Updates terminology and contact information, identifies permissible well-workover operations with tree installed that are defined as 'routine'.   Reiterates that all 'non-routine' well-workover operations may not be performed without MMS approval, including acidizing, while clarifying that acidizing operations using the 'bulkheading' method is considered routine where no change occurs in the wellbore configuration.  Acidizing operations using a Coiled Tubing unit are considered non-routine.

Active Oil and Gas Well Workover Operations
NTL 2009-G04 09-g04.pdf (26.26 KB)

Notice to operators and pipeline right-of-way holders regarding the goals of coastal restoration, beach nourishment, and levee construction to mitigate erosion, flooding, and land loss in coastal Louisiana.  Adopts safeguards of OCS sediment policy as authorized by Marine Minerals Program. States that future requests for decommissioning-in-place (DIP) of pipelines in such designated sediment reserves are discouraged.     

Active Sediment Resources at 30 CFR Part 281
NTL 2009-G03 09-g03.pdf (49.42 KB)

Guidance on provision of synthetic mooring systems in DWOPs, considered a non-conventional technology regardless of water depth.  The design should conform to API Recommended Practice 2SM and operators must comply with 30 CFR 250.292(c) for design, fabrication, and installation information on the mooring system. 

Active Oil and Gas Drilling Operations, Plans and Information
NTL 2009-G02 09-g02.pdf (230.4 KB)

Ocean Current Monitoring - This Notice to Lessees and Operators (NTL) replaces NTL No. 2007-G17, effective May 7, 2007, and expired April 30, 2008.

Superseded
NTL 2010-N06-FAQ 10-n06-faqs.pdf (763.33 KB)

Clarifies information requirements for EPs, DPPs, and DOCDs across all OCS areas and in both shallow water (less than 500 feet) and Deepwater (over 500 feet).  Authorizes performance of rig-related workovers and certain drilling activity for which an APD is already approved, without submitting additional information.   Provides examples of new information required by BOEMRE in six attachments. 

Active Plans and Information, Pollution Prevention and Control
NTL 2010-N03 10-n03.pdf (6.56 MB)

Describes data elements, parameters and reports, and computer modeling or spreadsheets that are required in a complete application for project royalty relief in conjunction with notice issued in November 2008 (73 FR 69490).  Supplements original guidelines in Deep Water Royalty Relief Act of 1996.

Active Part 203 Royalty Relief Activities
NTL 2005-G20 ntl2005-g20.pdf (200.55 KB)

This NTL supersedes NTL 2005-G16. The Minerals Management Service (MMS) Gulf of Mexico OCS Region (GOMR) is issuing this Notice to Lessees and Operators and Pipeline Right-of-way Holders (NTL) pursuant to 30 CFR 250.103 and 30 CFR 250.106(b) and (c) to describe the inspections you need to conduct and the plans and reports you need to prepare because of the known and potential damage to OCS facilities caused by Hurricane Katrina when it struck land on August 29, 2005, and Hurricane Rita when it struck land on September 24, 2005.

Expired
NTL 2010-G06 10-g06.pdf (27.54 KB)

UNITED STATES DEPARTMENT OF THE INTERIOR BUREAU OF OCEAN ENERGY MANAGEMENT, REGULATION AND ENFORCEMENT GULF OF MEXICO OCS REGION NTL No. 2010-G06 Effective Date: September 15, 2010 Expiration Date: September 30, 2012 NOTICE TO LESSEES AND OPERATORS OF FEDERAL OIL, GAS, AND SULPHUR LEASES AND PIPELINE RIGHT-OF-WAY HOLDE

Expired
NTL 2010-G05 10-g05.pdf (54.39 KB)

UNITED STATES DEPARTMENT OF THE INTERIOR BUREAU OF OCEAN ENERGY MANAGEMENT, REGULATION AND ENFORCEMENT GULF OF MEXICO OCS REGION NTL No. 2010-G05 Issue Date: September 15, 2010 Effective Date: October 15, 2010 Expiration Date: October 14, 2013 NOTICE TO LESSEES AND OPERATORS OF FEDERAL OIL AND GAS LEASES AND PIPELINE R

Superseded
NTL 2005-G15 ntl2005-g15.pdf (19.77 KB)

This Notice to Lessees and Operators (NTL) is issued pursuant to 30 CFR 250.103 and supersedes NTL No. 2005-G06, effective May 26, 2005 on this subject.  It provides for the submittal of a report of more detailed information regarding production shut-ins.  Due to the approach of Hurricane Rita, the GOMR temporary office located in Houston Texas will be closed starting Thursday September 22, 2005.  This office will reopen Monday September 26, 2005 depending on suitability of occupancy.  Phone and fax numbers for reporting statistics have been changed below to the MMS Herndon office

Superseded
NTL 2005-G14 ntl2005-g14.pdf (83.98 KB)

The Minerals Management Service (MMS) Gulf of Mexico OCS Region (GOMR) is issuing this Notice to Lessees and Operators and Pipeline Right-of-way Holders (NTL) pursuant to 30 CFR 250.103 and 30 CFR 250.106(b) and (c) to describe the inspections you need to conduct and the plans and reports you need to prepare because of the known and potential damage to OCS facilities caused by Hurricane Katrina when it struck land on August 29, 2005.

Expired
NTL 2010-G01 10-g01.pdf (47.51 KB)

Clarifies reporting requirements for natural gas liquids and retrograde condensate that are recovered from qualified deep gas production

Active Part 203 Royalty Relief Activities