Sources For API Numbers
There are primary and secondary sources for API numbers. Petroleum Information (now IHS Energy assigned API numbers for most wells drilled before January 1, 1967. After that date, most numbers were assigned by the various state oil and gas regulatory bodies. The state commissions are therefore the primary, authoritative source for API numbers. However, API numbers can be purchased (along with other well information) from IHS.
Most oil and gas commissions make API numbers (and well header data) available on-line and free of charge. The ability to download the data varies from state to state. Below is a list of the 50 states, along with their state code, and the name and internet address of their oil and gas regulatory agency where available. This list is partially based on information available from the Railroad Commission of Texas.
| State | Code | Regulatory agency | Link |
|---|---|---|---|
| Alabama | 01 | Alabama State Oil & Gas Board | |
| Arizona | 02 | Arizona Oil & Gas Conservation Commission | |
| Arkansas | 03 | Arkansas Oil & Gas Commission | |
| California | 04 | California Department of Conservation | |
| Colorado | 05 | Colorado Oil & Gas Conservation Commission | |
| Connecticut | 06 | ||
| Delaware | 07 | ||
| District of Columbia | 08 | ||
| Florida | 09 | Florida Geological Survey Oil & Gas Section | |
| Georgia | 10 | Georgia Department of Natural Resources Environmental Protection Division | |
| Idaho | 11 | Idaho State Board of Land Commissioners | |
| Illinois | 12 | Illinois Division of Oil & Gas | |
| Indiana | 13 | Indiana Division of Oil & Gas | |
| Iowa | 14 | ||
| Kansas | 15 | Kansas Corporation Commission - Conservation Division | |
| Kentucky | 16 | Kentucky Division of Oil & Gas | |
| Louisiana | 17 | Louisiana Office of Conservation | |
| Maine | 18 | ||
| Maryland | 19 | Maryland Department of Natural Resources | |
| Massachusetts | 20 | ||
| Michigan | 21 | Michigan Department of Environmental Quality | |
| Minnesota | 22 | ||
| Mississippi | 23 | Mississippi State Oil & Gas Board | |
| Missouri | 24 | Missouri State Oil & Gas Council | |
| Montana | 25 | Montana Board of Oil & Gas Conservation | |
| Nebraska | 26 | Nebraska Oil & Gas Conservation Commission | |
| Nevada | 27 | Nevada Commission on Mineral Resources | |
| New Hampshire | 28 | ||
| New Jersey | 29 | ||
| New Mexico | 30 | New Mexico Oil & Gas Conservation Commission | |
| New York | 31 | New York Division of Mineral Resources | |
| North Carolina | 32 | North Carolina Department of Environment and Natural Resources | |
| North Dakota | 33 | North Dakota Industrial Commission Oil & Gas Division | |
| Ohio | 34 | Ohio Department of Natural Resources Division of Minerals Resource Management | |
| Oklahoma | 35 | Oklahoma Oil & Gas Conservation Commission | |
| Oregon | 36 | Oregon Mineral Land Regulation & Reclamation Program | |
| Pennsylvania | 37 | Pennsylvania Department of Environmental Protection, Office of Oil and Gas Management | |
| Rhode Island | 38 | ||
| South Carolina | 39 | South Carolina Geological Survey | |
| South Dakota | 40 | South Dakota Department of Environment & Natural Resources | |
| Tennessee | 41 | Tennessee State Oil & Gas Board | |
| Texas | 42 | Railroad Commission of Texas | |
| Utah | 43 | Utah Division of Oil, Gas & Mining | |
| Vermont | 44 | ||
| Virginia | 45 | Virginia Division of Gas & Oil | |
| Washington | 46 | Washington Division of Geology & Earth Resources | |
| West Virginia | 47 | West Virginia Office of Oil & Gas | |
| Wisconsin | 48 | ||
| Wyoming | 49 | Wyoming Oil & Gas Conservation Commission | |
| Alaska | 50 | Alaska Division of Oil & Gas | |
| Hawaii | 51 | ||
| Alaska Offshore | 55 | Bureau of Ocean Energy Management, Regulation and Enforcement | |
| Pacific Coast Offshore | 56 | Bureau of Ocean Energy Management, Regulation and Enforcement | |
| Northern Gulf of Mexico | 60 | Bureau of Ocean Energy Management, Regulation and Enforcement | |
| Atlantic Coast Offshore | 61 | Bureau of Ocean Energy Management, Regulation and Enforcement |
IHS is now a secondary source for API numbers for most states, since they do not have assigning authority. Other secondary sources include commercial vendors of oil and gas data. API numbers are also used in many private corporate databases.
Read more about this topic: API Well Number
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