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Documentation on Data Files

Division of Mineral Resources New York State Department of Environmental Conservation

The accompanying file, wellDOS.zip, updated nightly, consists of data from the Division of Mineral Resources Oil and Gas database. wellDOS.zip contains two files: giswellspublic.dbf and oil_gas.html. These files contain records, in the database, of wells that have been drilled.

Some well records contain confidential information and this has been replaced by the word "CONFIDENTIAL".

The file wells contains similar information as below.

The file type is dbf to simplify importing into spreadsheet programs.

The first line of the file contains field names.

The latitude and longitude are in the NAD83 datum. Longitudinal values are negative (-) to reflect the correct geographical coordinate quadrant. [ an example for decimal longitude: -73.23541 , longitude in degs., mins., secs. -735230].

Geographic Data Set: Oil and Gas Wells
Description: This coverage contains data from the Division of Mineral Resources' Oil and Gas Wells permit files
Available: Statewide
Completion or Most Recent Revision Date: Shapefile updated nightly (Monday - Friday).
Attribute Tables: Items (or Fields) in the Point Attribute Table
Contact: Division of Mineral Resources
625 Broadway, 3rd Floor
Albany, NY 12233-6500
dmninfo@gw.dec.state.ny.us
Documentation Date: 2 April 2007

Usage Notes:

  1. This data has not been field verified but is expected to be within 100 meters of the actual well location. The data should not be used for precise determination of distances to buildings, property boundaries or other features. It is most useful for determining general locations of wells.

Attribute Tables

Items (or Fields) in the Point Attribute Table
FIELD NAME EXPLANATION
API_WELLNO 14-Digit API Number
CNTY 3-Digit County Code County Codes
HOLE 5-Digit API Number
SIDETRCK 2-Digit Sidetrack Code
COMPLETION 2-Digit Company Completion Code
WELL_NM Well Name
CONAME Well Owner
OPNO Well Owner Code
DT_APPROV Permit Approval Date
DT_SPUD Spud Date
DT_COMP Well Completion Date
WELL_TYP Well Type Well Type Codes
DTD Total Depth of Well
WL_STATUS Well Status Well Status Codes
TOWN Town
FIELD Well Field
PRODFORM Producing Formation
XLOC Longitude (decimal degrees)
YLOC Latitude (decimal degrees)
CONFID Confidential Well Data Confidential Information Codes
WELLST Denotes well type code for mapping. Well Type Codes for Mapping
QUAD USGS Quadrangle
QUADSEC Letter designation of USGS quadrangle section
DEEPESTFOR Deepest Geologic Formation Penetrated by Well
ELEVATION Feet above sea level
UPDATE DATE Last date record was modified




County Names and Codes
COUNTY CODE COUNTY NAME COUNTY CODE COUNTY NAME
001 Albany 061 New York
003 Allegany 063 Niagara
005 Bronx 065 Oneida
007 Broome 067 Onondaga
009 Cattaraugus 069 Ontario
011 Cayuga 071 Orange
013 Chautauqua 073 Orleans
015 Chemung 075 Oswego
017 Chenango 077 Otsego
019 Clinton 079 Putnam
021 Columbia 081 Queens
023 Cortland 083 Rensselaer
025 Delaware 085 Richmond
027 Dutchess 087 Rockland
029 Erie 089 St. Lawrence
031 Essex 033 Franklin
093 Schenectady 035 Fulton
095 Schoharie 037 Genesee
097 Schuyler 039 Greene
099 Seneca 041 Hamilton
101 Steuben 043 Herkimer
103 Suffolk 045 Jefferson
105 Sullivan 047 Kings
107 Tioga 049 Lewis
109 Tompkins 051 Livingston
111 Ulster 053 Madison
113 Warren 055 Monroe
115 Washington 057 Montgomery
117 Wayne 059 Nassau
119 Westchester 121 Wyoming
123 Yates 091 Saratoga


Back to Attribute Tables

Confidential Information Codes
R Released
Y We have confidential information for 6 months.
E Confidential information is extended for an additional 6 months.
N Well does not have confidential information.


Back to Attribute Tables

Well Status Codes
AC Active
AR Application Received to Drill/Plug/Convert
CA Cancelled
DC Drilling Completed
DD Drilled Deeper
DG Drilling in Progress
DH Dry Hole
EX Expired Permit
IN Inactive
NL Not Liste
NR Not Reported on AWR
PA Plugged and Abandoned
PI Permit Issued
PM Plugged Back Multilateral
RE Refunded Fee
RW Released - Water Well
SI Shut-In
TA Temporarily Abandoned
TR Transferred Permit
UN Unknown
VP Voided Permit

Back to Attribute Tables

Well Type Codes
AB Abandoned Location
BR Brine
DH Dry Hole
DS Disposal
DW Dry Wildcat
GD Gas Development
GE Gas Extension
GW Gas Wildcat
IG Gas Injection Well
IW Enhanced Oil Recovery - Injection
LP Liquefied Petroleum Gas Storage
MB Monitoring Brine
MM Monitoring Miscellaneous
MS Monitoring Storage
NL Not Listed
OB Observation Well
OD Oil Development
OE Oil Extension
OW Oil Wildcat
SG Stratigraphic
ST Storage
TH Geothermal
UN Unknown

Back to Attribute Tables

Well Type Codes for Mapping (WellST Field in Attribute Table)
GW Gas Well
GWP Gas Well Plugged
OW Oil Well
OWP Oil Well Plugged
S Storage Well
SP Storage Well Plugged
SM Solution Brine Well
SMP Solution Brine Well Plugged
DH Dry Hole
O Other Well*
OP Other Well Plugged*

*Other includes: Injection, Stratigraphic, Geothermal, and Not Listed well types.
Back to Attribute Tables

  • Page applies to all NYS regions
  • PDF Help:
  • For assistance with PDFs on this page, please call 518-402-8072.
  • Contact for this Page:
  • NYSDEC
    Division of Mineral Resources
    625 Broadway
    3rd Floor
    Albany NY 12233-6500
    518-402-8072
    email us