Cell maps for each oil and gas assessment unit were created by the USGS to illustrate the degree of exploration, type of production, and distribution of production in an assessment unit or province. Each cell represents a quarter-mile square of the land surface, and the cells are coded to represent whether the wells included within the cell are predominantly oil-producing, gas-producing, both oil and gas-producing, dry, or the type of production of the wells located within the cell is unknown. The well information was initially retrieved from the IHS Energy Group, PI/Dwights PLUS Well Data on CD-ROM, which is a proprietary, commercial database containing information for most oil and gas wells in the U.S. Cells were developed as a graphic solution to overcome the problem of displaying proprietary PI/Dwights PLUS Well Data. No proprietary data are displayed or included in the cell maps. The data from PI/Dwights PLUS Well Data were current as of October 2002 when the cell maps were ...

This map shows the oil and natural gas wells across the United States. Oil and Natural Gas Well: A hole drilled in the earth for the purpose of finding or producing crude oil or natural gas; or producing services related to the production of crude or natural gas. Geographic coverage includes the United States (Alabama, Alaska, Arizona, Arkansas, California, Colorado, Florida, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maryland, Michigan, Mississippi, Missouri, Montana, North Dakota, Nebraska, Nevada, New Mexico, New York, Ohio, Oklahoma, Oregon, Pennsylvania, South Dakota, Tennessee, Texas, Utah, Virginia, Washington, West Virginia, Wyoming) as well Oil and Natural Gas wells in the Canadian provinces of British Columbia and Manitoba that are within 100 miles of the country's border with the United States. According to the Energy Information Administration (EIA) the following states do not have active/producing Oil or Natural Gas Wells: Connecticut, Delaware, District of Columbia, Georgia, Hawaii, Iowa, Idaho, Massachusetts, Maine, Minnesota, North Carolina, New Hampshire, New Jersey, Rhode Island, South Carolina, Vermont, and Wisconsin. Some states do have wells for underground Natural Gas storage facilities where these have been identified they were included. This layer is derived from well data from individual states and provinces and United States Agencies. This layer is complete for the United States but further development of data missing from two Canadian provinces and Mexico is in process. This update release includes an additional 497,036 wells covering Texas. Oil and gas exploration in Texas takes advantage of drilling technology to use a single surface well drilling location to drill multiple bottom hole well connections to extract oil and gas. The addition of Well data from Texas results in the addition of a related table to support this one surface well to many bottom hole connections. This related table provides records for Wells that have more than one bottom hole linked to the surface well. Sourced from the HIFLD Open Data Portal for Energy.

This data is visualized in the Michigan Orphan Wells Dashboard. Michigan’s Orphan Well Program was created in 1994. Orphan wells are abandoned or improperly plugged wells for which there is no known solvent existing owner or operator. EGLE’s Oil, Gas, and Minerals Division (OGMD) worked with the oil and gas industry for the passage of Act 308, P.A. 1994, which established an Orphan Well Fund within the Michigan Department of Treasury. OGMD utilizes the fund, paid for by revenue created by a severance tax on the oil and gas industry, to plug and remediate orphan well sites. Since the passage of Act 308 nearly 30 years ago, approximately 400 sites have either been plugged or remediated. As of October 1, 2022, Michigan had 447 documented orphan sites as well as additional associated orphaned facilities, piping, and contamination that remained to be addressed.Beginning October 1, 2022, OGMD began utilizing federal grant funds awarded under the Infrastructure Investment and Jobs Act (IIJA), 2021, also known as the Bipartisan Infrastructure Law Section 40601, to provide additional financial assistance for the Orphan Well Program. The IIJA created three types of grants for states to apply for to help address orphan wells and orphan facilities on federal, state, tribal, and private lands.This data also includes state funded orphan well cleanups. The orphan well data is updated nightly. A NULL in a field means that the field does not have any value.EGLE makes every attempt to ensure data accuracy but cannot guarantee the completeness or accuracy of the information contained within this dataset. For content related questions or to submit feedback, reach out to EGLE-Maps@Michigan.gov. Please visit the orphan well program in Michigan webpage for more information.

See below for a description of the data fields. Notes: MIRBDMSNET is the Michigan EGLE-OGMD Oil and Gas Well database, which stands for: Michigan Risk Based Data Management System .net. Field Name Field Description

OrphanGroup Funding groups for Orphan well/facility derived from MIRBDMSNET database. State= State fundedIIJA= funded through the Federal Infrastructure Investment and Jobs Act (IIJA)

AssignedStaff OGMD staff code from MIRBDMSNET database. Codes may change as staff changes. Reach out to EGLE for current staff code list.

OrphanCategory Category of Orphan well/facility derived from MIRBDMSNET database. Categories are 1, 2, or 3.Category 1= wells are abandoned, leaking wellsCategory 2= wells are abandoned, non-leaking wellsCategory 3= environmental remediation investigations and cleanups

ProjectName Name of Orphan project from MIRBDMSNET database.

ProjectType Type of Orphan Project from MIRBDMSNET databaseindividual=individual plugging projectmultiple=multiple well plugging projectwellandfac= well and facility decommissioning and site restoration projects

ProjectScore Score for orphan project from MIRBDMSNET database. Scores are derived from separate form filled out by the orphan well team to take into account many risk factors to gauge the overall risk. A higher score indicates a higher risk and therefore a higher priority level.

IndividualScore Individual well/facility score from MIRBDMSNET database. Scores are derived from separate form filled out by the orphan well team to take into account many risk factors to gauge the overall risk. A higher score indicates a higher risk and therefore a higher priority level.

MichiganPermitNumber Well permit number from MIRBDMSNET.

PN_WELLSN Well permit number from MIRBDMSNET.

PN_WELLST Well permit number from MIRBDMSNET. For labeling purposes.

Well_Name Well name from MIRBDMSNET.

MichiganFacilityNumber Facility number from MIRBDMSNET.

FACN2 Facility number from MIRBDMSNET. For labeling purposes.

FacilityName Facility name from MIRBDMSNET.

LABEL Combined labels for both wells and facilities. This is derived from other columns.

STATUS Status of well or facility derived from MIRBDMSNET.

Data_Element Type of object in Orphan list- well or facility- derived from MIRBDMSNET. Either an orphan facility or an orphan well.

Element_Status Status of orphan object- well or facility- derived from MIRBDMSNET.Active= not plugged or removedPlugged=well is pluggedComplete=facility is removed.

US_Well_ID_API API number for wells, derived from MIRBDMSNET

WellID_DataSource Source of well ID- always "API".

WellType Type of well, derived from MIRBDMSNET.

CountyName County location of well/facility, derived from MIRBDMSNET.

TownshipName Township location of well/facility, derived from MIRBDMSNET.

TRS Section, township, range location of well/facility, derived from MIRBDMSNET.

Quarter Quarter location of well/facility, derived from MIRBDMSNET.

QuarterQuarter Quarter quarter location of well/facility, derived from MIRBDMSNET.

QuarterQuarterQuarter Quarter quarter quarter location of well/facility, derived from MIRBDMSNET.

DTD Drilled total depth of well in ft, derived from MIRBDMSNET.

TVD Total vertical depth of well in ft, derived from MIRBDMSNET.

FieldName Field name associated with well/facility, derived from MIRBDMSNET.

FieldType Type of field associated with well/facility, derived from MIRBDMSNET.G=gasO=oilGS= gas storage

ProducingFormation The geologic formation associated with well/facility, derived from MIRBDMSNET.

Year Year well or facility established, derived from MIRBDMSNET.

Company Last company to own well/facility, derived from MIRBDMSNET.

Longitude Longitude location of well/facility, derived from MIRBDMSNET.

Latitude Latitude location of well/facility, derived from MIRBDMSNET.

HorizontalDatum Horizontal datum of well/facility. Always "Nad83", derived from MIRBDMSNET.

LocationAccuracy Source of location information, derived from MIRBDMSNET.

RemedialAction Describes if remedial action required. derived from MIRBDMSNET database. Options are Yes, No, NA.

StateHouse State house number where well/facility is located, derived from MIRBDMSNET database.

StateSenate State senate number where well/facility is located, derived from MIRBDMSNET database.

SurfaceManagEntityType Surface managing entity type, derived from MIRBDMSNET database. Options are:PrivateStateFederalTribeMixed

SubsurfaceManagEntityType Subsurface managing entity type, derived from MIRBDMSNET database. Options are:PrivateStateFederalTribeMixed

State Always "Michigan", derived from MIRBDMSNET database.

Tribe Tribe involved in orphan project, derived from MIRBDMSNET database.

BayMills: Bay Mills Indian CommunityGTraverse: Grand Traverse Band of Ottawa and ChippewaHannahville: Hannahville Indian CommunityKeweenaw: Keweenaw Bay Indian CommunityLacVieux: Lac Vieux Desert Band of Lake Superior ChippewaLittleRiver: Little River Band of OttawaLTraverse: Little Traverse Bay Bands of OdawaMatch: Match E Be Nash She Wish Band of PotawatomiNottaw: Nottawaseppi Huron Band of PotawatomiPokagon: Pokagon Band of PotawatomiSaginaw: Saginaw ChippewaSaultSteMarie: Sault Ste Marie Tribe of Chippewa

PrePlugMethaneMeas Measurement of methane pre-plugging, derived from MIRBDMSNET database. Unit is grams/hour or g/hr.

PostPlugMethaneMeas Measurement of methane post-plugging, derived from MIRBDMSNET database. Unit is grams/hour or g/hr.

MethaneMeasMethod Method for measuring methane, derived from MIRBDMSNET database. Options are:AVO: Audio, Visual, and OlfactoryOGI: Optical Gas ImageryHandheldMass SamplingNA

HabitatRestored Was habitat restored?, derived from MIRBDMSNET database. Options are Yes, No, NA.

AmountHabitatRestored Amount of habitat restored, derived from MIRBDMSNET database. In Acres.

RestorationEndpoint Description of final restoration, derived from MIRBDMSNET database.

DateRestoreComplete Date restoration was completed, derived from MIRBDMSNET database.

SurfWtrContamination Does surface water contamination exist?, derived from MIRBDMSNET database. Options are Yes, No, TBD.

SurfWtrContamIndicator Kind of testing indicating surface water contamination, derived from MIRBDMSNET database. Options are AVO (Audio, Visual, and Olfactory), Sample, or NA.

SurfWtrRemediation Is surface water remediation needed?, derived from MIRBDMSNET database. Options are Yes, No, TBD, or NA.

SurfWtrRemedMethod Describe method for surface water remediation, derived from MIRBDMSNET database.

SurfWtrRemedCompleteDate Date surface water remediation was completed, derived from MIRBDMSNET database.

GroundWtrContamination Does ground water contamination exist?, derived from MIRBDMSNET database. Options are Yes, No, TBD.

GroundWtrContamIndicator Kind of testing indicating ground water contamination, derived from MIRBDMSNET database. Options are AVO (Audio, Visual, and Olfactory), Sample, or NA.

GroundWtrRemediation Is ground water remediation needed?, derived from MIRBDMSNET database. Options are Yes, No, TBD, or NA.

GroundWtrRemedMethod Describe method for ground water remediation, derived from MIRBDMSNET database.

GroundWtrRemedCompleteDate Date ground water remediation was completed, derived from MIRBDMSNET database.

CommunityImpact Does this location have community impact, derived from MIRBDMSNET database. Options are Yes, No, TBD, NA. From the US-DOI: " Indicates whether this

Recycled CO2 is being used in this demonstration project to produce bypassed oil from the Silurian Dover 35 Niagaran pinnacle reef located in Otsego County, Michigan. CO2 injection in the Dover 35 field into the Salling-Hansen 4-35A well began on May 6, 2004. A second injection well, the Salling-Hansen 1-35, commenced injection in August 2004. Oil production in the Pomerzynski 5-35 producing well increased from 9 BOPD prior to operations to an average of 165 BOPD in December, 2004 and has produced at an average rate of 61 BOPD (Jan-Dec, 2005). The Salling-Hansen 4-35A also produced during this reporting period an average of 29 BOPD. These increases have occurred as a result of CO2 injection and the production rate appears to be stabilizing. CO2 injection volume has reached approximately 2.18 BCF. The CO2 injection phase of this project has been fully operational since December 2004 and most downhole mechanical issues have been solved and surface facility modifications have been completed. It is anticipated that filling operations will run for another 6-12 months from July 1, 2005. In most other aspects, the demonstration is going well and hydrocarbon production has been stabilized at an average rate of 57 BOPD (July-Dec, 2005). Our industry partners continue to experiment with injection rates and pressures, various downhole and surface facility mechanical configurations, and the huff-n-puff technique to develop best practices for these types of enhanced recovery projects. Subsurface characterization was completed using well log tomography and 3D visualizations to map facies distributions and reservoir properties in the Belle River Mills, Chester 18, Dover 35, and Dover 36 Fields. The Belle River Mills and Chester 18 fields are being used as type-fields because they have excellent log and/or core data coverage. Amplitude slicing of the log porosity, normalized gamma ray, core permeability, and core porosity curves are showing trends that indicate significant heterogeneity and compartmentalization in these reservoirs associated with the original depositional fabric and pore types of the carbonate reservoir rocks. Accumulated pressure data supports the hypothesis of extreme heterogeneity in the Dover 35. Some intervals now have pressure readings over 2345 psig (April 29, 2005) in the A-1 Carbonate while nearby Niagaran Brown intervals only show 1030 psig (March 7, 2005). This is a pressure differential over 1300 psig and suggests significant vertical barriers in the reef, consistent with the GR tomography modeling. Digital and hard copy data have been compiled for the Niagaran reefs in the Michigan Basin, including a detailed summary of 20 fields in the vicinity of the demonstration well. Technology transfer took place through technical presentations regarding visualization of the reservoir heterogeneity in these Niagaran reefs. Oral presentations were given at two Petroleum Technology Transfer Council workshops, a Michigan Oil and Gas Association Conference, a Michigan Basin Geological Society meeting, and the Eastern American Association of Petroleum Geologist's Annual meeting. In addition, we met with our industry partners several times during the first half of 2005 to communicate and discuss the reservoir characterization and field site aspects of the demonstration project. A technical paper was published in the April 2005 issue of the AAPG Bulletin on the characterization of the Belle River Mills Field.