PDF version - The Railroad Commission of Texas

THE COUNTY CODE IDENTIFIES THE COUNTY OR COUNTIES IN WHICH A
FIELD IS LOCATED. THIS CODE IS BASED ON THREE-DIGIT NUMBERS:
THE RAILROAD COMMISSION (RRC) ASSIGNS A NUMBER TO EACH ONSHORE
COUNTY; THE AMERICAN PETROLEUM INSTITUTE (API) ASSIGNS A NUMBER
TO EACH OFFSHORE COUNTY. THE ACTUAL COUNTY CODES ARE LISTED IN
APPENDIX A. THE FIRST 254 COUNTIES LISTED ARE ASSIGNED ODD
NUMBERS (CODES 1, 3, 5...507) AND ARE ONSHORE COUNTIES. THE
REMAINING 23 COUNTIES ARE ASSIGNED BOTH ODD AND EVEN NUMBERS AND
ARE OFFSHORE.
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DISCOVERY DATE (DISC-DATE)
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THE DISCOVERY DATE OF THE FIRST WELL IN THE GAS FIELD; IT IS
FORMATTED IN CCYYMMDD SEQUENCE WHERE CCYY = YEAR, MM = MONTH,
AND DD = DAY IF THE DAY IS NOT KNOWN, THERE WILL BE ZEROS IN
THE BYTES SPECIFIED FOR DAY. IF BOTH THE MONTH AND DAY ARE NOT
KNOWN, ALL FOUR DIGITS OF THE YEAR WILL BE GIVEN, BEGINNING IN
THE BYTES SPECIFIED FOR DAY.
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TYPE FIELD (TYPE-F)
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THE TYPE FIELD CODE INDICATES WHETHER OR NOT THE GAS FIELD IS
ASSOCIATED WITH AN OIL FIELD. IF A GAS FIELD IS ASSOCIATED WITH
AN OIL FIELD, THEY WILL USUALLY HAVE THE SAME FIELD NUMBER. THE
ACTUAL PROCESS OF CLASSIFYING A FIELD DEPENDS INITIALLY ON THE
GAS TO OIL RATIO (GOR) OF THE FIRST WELL BUT MAY ALSO RESULT FROM
ADMINISTRATIVE HEARINGS.
N NOT ASSOCIATED WITH AN OIL FIELD
A ASSOCIATED WITH AN OIL FIELD
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TYPE ALLOW (CLASS)
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THIS CODE INDICATES THE CLASSIFICATION OF A GAS FIELD. THE
CLASSIFICATION OF THE GAS FIELD DETERMINES HOW THE ALLOWABLE IS
CALCULATED. THE CLASSIFICATIONS ARE GIVEN TO THE GAS FIELDS BASED
ON SUCH FACTORS AS THE NUMBER OF WELLS IN THE FIELD, DAILY
PRODUCING RATE OF THE WELLS, AND THE DEMAND FOR GAS.
BLANK ASSOCIATED 49(B)
S EXEMPT
P PRORATED
C CYCLING
R STORAGE
L LIQUID LIMIT
F 100% OPEN FLOW
K SALVAGE
O ONE WELL FIELD
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