Oil and gas leases in Guadalupe County

Guadalupe County, Texas has 608 oil and gas leases with production on file at the Railroad Commission, all of them in Commission district 01. 607 of them are oil leases and 1 are gas leases. Between them they carry 3,849 wellbores. Reported volumes run from January 1993 to August 2026 and come to 32.7 million barrels of oil and 106 thousand Mcf of gas. 161 operators file returns here. Every lease below has its own page with a decline-curve forecast and an estimate of what the whole lease is worth.

Key facts about Guadalupe County

How many oil and gas leases are in Guadalupe County?
Guadalupe County has 608 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has Guadalupe County produced?
Leases in Guadalupe County have reported 32,662,624 barrels of oil (bbl) and 106,285 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
Who are the biggest operators in Guadalupe County?
Meridian Oil Production Inc. operates 55 of the 608 producing leases in Guadalupe County, more than any other operator on record with the Railroad Commission of Texas.
How many operators are active in Guadalupe County?
161 operators file production returns for leases in Guadalupe County.
How much are mineral rights in Guadalupe County worth?
There is no single figure: what a mineral or royalty interest in Guadalupe County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 608 leases listed here has its own page with the full production history the operator reported, a decline-curve forecast, and an estimate of what a royalty interest in it is worth today.

Operators here

The company that runs the wells and issues the royalty cheque.

Railroad Commission districts

Leases — page 1 of 4

  • BAKER, A. J. — oil, Meridian Oil Production Inc., Guadalupe County, 3.3 million reported
  • MCKEAN, A. J. & J. M. — oil, Meridian Oil Production Inc., Guadalupe County, 2.4 million reported
  • ALLEN, J. E. -B- — oil, Meridian Oil Production Inc., Guadalupe County, 2.0 million reported
  • ALLEN, J. E. -A- — oil, Meridian Oil Production Inc., Guadalupe County, 1.6 million reported
  • KNOBLOCH B - — oil, Meridian Oil Production Inc., Guadalupe County, 1.4 million reported
  • KNOBLOCH, C. — oil, Meridian Oil Production Inc., Guadalupe County, 1.3 million reported
  • MARINES, L. — oil, Meridian Oil Production Inc., Guadalupe County, 1.2 million reported
  • DENMAN -A- — oil, Meridian Oil Production Inc., Guadalupe County, 1.0 million reported
  • DIX, THOMAS C — oil, Meridian Oil Production Inc., Guadalupe County, 875 thousand reported
  • KNOBLOCH A — oil, Meridian Oil Production Inc., Guadalupe County, 717 thousand reported
  • DIX & MCKEAN C — oil, Meridian Oil Production Inc., Guadalupe County, 590 thousand reported
  • ANDERSON, L. — oil, Meridian Oil Production Inc., Guadalupe County, 505 thousand reported
  • POSEY & BAKER (CHEVRON) — oil, Meridian Oil Production Inc., Guadalupe County, 366 thousand reported
  • DIX-MCKEAN "B" UNIT — oil, Meridian Oil Production Inc., Guadalupe County, 354 thousand reported
  • DIX, THOMAS 'A' — oil, Meridian Oil Production Inc., Guadalupe County, 352 thousand reported
  • KNOBLOCH, C. -A- 3H — oil, Vintage Petroleum, Inc., Guadalupe County, 322 thousand reported
  • ALLEN, J E B 07-H — oil, Vintage Petroleum, Inc., Guadalupe County, 295 thousand reported
  • APPLING, C. D. — oil, Delray Oil, Inc., Guadalupe County, 259 thousand reported
  • BLUMBERG — oil, P.S.N. Petroleum, Inc., Guadalupe County, 255 thousand reported
  • MCKEAN, A J & J M B 8-H — oil, Vintage Petroleum, Inc., Guadalupe County, 253 thousand reported
  • BAKER, A.J. 14H — oil, Vintage Petroleum, Inc., Guadalupe County, 249 thousand reported
  • WILLE, H. — oil, Meridian Oil Production Inc., Guadalupe County, 249 thousand reported
  • GOLDEN MCKEAN 1H — oil, Vintage Petroleum, Inc., Guadalupe County, 234 thousand reported
  • KNOBLOCH, C. -A- 05-H — oil, Vintage Petroleum, Inc., Guadalupe County, 222 thousand reported
  • ANDERSON, C. (CHEVRON) — oil, Meridian Oil Production Inc., Guadalupe County, 220 thousand reported
  • BAKER, A.J. 12H — oil, Vintage Petroleum, Inc., Guadalupe County, 213 thousand reported
  • MILLER, RAND — oil, Meridian Oil Production Inc., Guadalupe County, 205 thousand reported
  • DENMAN -C- — oil, Meridian Oil Production Inc., Guadalupe County, 201 thousand reported
  • HARRIS, GARLAND V. — oil, Delray Oil, Inc., Guadalupe County, 191 thousand reported
  • BAKER, A.J. 2HST — oil, Vintage Petroleum, Inc., Guadalupe County, 188 thousand reported
  • BAKER, A J 13-H — oil, Vintage Petroleum, Inc., Guadalupe County, 186 thousand reported
  • POSEY — oil, Seagull Operating Co., Inc., Guadalupe County, 185 thousand reported
  • MCKEAN,A.J.&J.M. -A- /137.50AC./ — oil, Meridian Oil Production Inc., Guadalupe County, 183 thousand reported
  • ANDERSON, C. 1H — oil, Vintage Petroleum, Inc., Guadalupe County, 182 thousand reported
  • KNOBLOCH, C. -B- 4H — oil, Vintage Petroleum, Inc., Guadalupe County, 179 thousand reported
  • APPLING, CARL W. — oil, Me-No Production, Guadalupe County, 169 thousand reported
  • WILSON, DALLAS 1H — oil, Vintage Petroleum, Inc., Guadalupe County, 169 thousand reported
  • SHANKLIN, H. S. — oil, Delray Oil, Inc., Guadalupe County, 167 thousand reported
  • DENMAN, L.G. "A" — oil, Texas Petroleum Investment Co., Guadalupe County, 166 thousand reported
  • DIX & MCKEAN "C" 01-H — oil, Vintage Petroleum, Inc., Guadalupe County, 162 thousand reported
  • MCKEAN, AJ & JM 5 HST — oil, Vintage Petroleum, Inc., Guadalupe County, 159 thousand reported
  • DIX, THOMAS -C- 2HST — oil, Vintage Petroleum, Inc., Guadalupe County, 155 thousand reported
  • DENMAN -A- — oil, Meridian Oil Production Inc., Guadalupe County, 151 thousand reported
  • DENMAN A 5H — oil, Vintage Petroleum, Inc., Guadalupe County, 149 thousand reported
  • KNOBLOCH, C. (CHEVRON) — oil, Meridian Oil Production Inc., Guadalupe County, 144 thousand reported
  • KNODEL, ANNIE — oil, Meridian Oil Production Inc., Guadalupe County, 137 thousand reported
  • DIX & MCKEAN "B" 3H — oil, Vintage Petroleum, Inc., Guadalupe County, 136 thousand reported
  • KLEIN, M. T. — oil, Meridian Oil Production Inc., Guadalupe County, 126 thousand reported
  • APPLING, GUS — oil, Spiller, H. G., Guadalupe County, 123 thousand reported
  • DENMAN, L. G. EST. — oil, Delray Oil, Inc., Guadalupe County, 122 thousand reported
  • ROAMEL, P. "B" — oil, Darst Creek Oil Company, Guadalupe County, 121 thousand reported
  • ANDERSON, L. 1H — oil, Vintage Petroleum, Inc., Guadalupe County, 120 thousand reported
  • KNOBLOCH, C. (SUN) 05-H — oil, Vintage Petroleum, Inc., Guadalupe County, 119 thousand reported
  • LULING FOUNDATION — oil, Pratt, Griffith, Teten, Guadalupe County, 115 thousand reported
  • POOLEY, A. L. — oil, Delray Oil, Inc., Guadalupe County, 113 thousand reported
  • DIX, THOMAS (CHEVRON) — oil, Meridian Oil Production Inc., Guadalupe County, 112 thousand reported
  • DIX, THOMAS "C" 3H ST — oil, Vintage Petroleum, Inc., Guadalupe County, 112 thousand reported
  • DENMAN A 4H — oil, Vintage Petroleum, Inc., Guadalupe County, 108 thousand reported
  • MCKEAN, A. J. & J. M. — gas, Vintage Petroleum, Inc., Guadalupe County, 106 thousand reported
  • ANDERSON, C. 2-H — oil, Texas Petroleum Investment Co., Guadalupe County, 103 thousand reported
  • HARRIS, GARLAND V. -A- — oil, Delray Oil, Inc., Guadalupe County, 102 thousand reported
  • KNOBLOCH -C- 2HST — oil, Vintage Petroleum, Inc., Guadalupe County, 101 thousand reported
  • KNICKERBOCKER, J. -A- — oil, Rollert Co., Inc., The, Guadalupe County, 101 thousand reported
  • DIX, THOMAS "A" 2H — oil, Vintage Petroleum, Inc., Guadalupe County, 100 thousand reported
  • MCKEAN, DIX B 4H — oil, Vintage Petroleum, LLC, Guadalupe County, 99 thousand reported
  • CARTER, A. J. — oil, Glenco Oil & Gas Company, Guadalupe County, 96 thousand reported
  • DIX MCKEAN B 2H — oil, Vintage Petroleum, Inc., Guadalupe County, 96 thousand reported
  • ALLEN, J.E. -A- 11H — oil, Vintage Petroleum, Inc., Guadalupe County, 96 thousand reported
  • POSEY BAKER 3H — oil, Vintage Petroleum, Inc., Guadalupe County, 95 thousand reported
  • DIX, THOMAS "A" 3H — oil, Vintage Petroleum, Inc., Guadalupe County, 94 thousand reported
  • BAKER, A. J. 16-H — oil, Texas Petroleum Investment Co., Guadalupe County, 92 thousand reported
  • ZEDLER "A" — oil, Texlan Oil Company, Inc., Guadalupe County, 90 thousand reported
  • ALLEN, J. E. "A" 12H — oil, Texas Petroleum Investment Co., Guadalupe County, 88 thousand reported
  • SHANKLIN, W. R. — oil, Meridian Oil Production Inc., Guadalupe County, 86 thousand reported
  • ECKOLS -C- — oil, Seagull Operating Co., Inc., Guadalupe County, 85 thousand reported
  • DENMAN C 3H — oil, Vintage Petroleum, Inc., Guadalupe County, 84 thousand reported
  • DOWDY, A. E., -B- — oil, Delray Oil, Inc., Guadalupe County, 82 thousand reported
  • KNOBLOCH, C. -B- — oil, Meridian Oil Production Inc., Guadalupe County, 81 thousand reported
  • BAKER, A J 7 ST-H — oil, Vintage Petroleum, Inc., Guadalupe County, 81 thousand reported
  • ROSS, C. E. — oil, Rollert Co., Inc., The, Guadalupe County, 78 thousand reported
  • GESICK-DOERFLER — oil, Columbia Gas Development Corp., Guadalupe County, 78 thousand reported
  • DENMAN, G. M. — oil, Darst Creek Oil Company, Guadalupe County, 77 thousand reported
  • RANFT, J. H. EST. — oil, Darst Creek Oil Company, Guadalupe County, 75 thousand reported
  • KNOBLOCH, C. — oil, Meridian Oil Production Inc., Guadalupe County, 74 thousand reported
  • SHANKLIN, HARVEY S. — oil, Pratt, Griffith, Teten, Guadalupe County, 74 thousand reported
  • ALLEN, JE "B" 8H — oil, Vintage Petroleum, Inc., Guadalupe County, 73 thousand reported
  • MALAER — oil, Darst Creek Oil Company, Guadalupe County, 73 thousand reported
  • DIX MCKEAN 8H UNIT — oil, Texas Petroleum Investment Co., Guadalupe County, 72 thousand reported
  • ROBERTS — oil, Texas Petroleum Investment Co., Guadalupe County, 71 thousand reported
  • DOWDY, A. E. — oil, Delray Oil, Inc., Guadalupe County, 68 thousand reported
  • H. WILLIE 2-H — oil, Texas Petroleum Investment Co., Guadalupe County, 67 thousand reported
  • DIX-MCKEAN "B" 6-H — oil, Texas Petroleum Investment Co., Guadalupe County, 65 thousand reported
  • SCHUBERT, A. H. — oil, Meridian Oil Production Inc., Guadalupe County, 65 thousand reported
  • DIX MCKEAN B 5H — oil, Vintage Petroleum, Inc., Guadalupe County, 62 thousand reported
  • DIX, THOMAS "B" — oil, Meridian Oil Production Inc., Guadalupe County, 62 thousand reported
  • ZEDLER — oil, Marrow Production Co., Guadalupe County, 61 thousand reported
  • WILSON, DALLAS — oil, Delray Oil, Inc., Guadalupe County, 61 thousand reported
  • DIX MCKEAN B 7H — oil, Texas Petroleum Investment Co., Guadalupe County, 61 thousand reported
  • DENMAN, C 1H — oil, Vintage Petroleum, Inc., Guadalupe County, 61 thousand reported
  • DIX & MCKEAN (CHEVRON) — oil, Meridian Oil Production Inc., Guadalupe County, 60 thousand reported
  • DENMAN, DAN J., -B- — oil, Delray Oil, Inc., Guadalupe County, 58 thousand reported
  • WRIGHT, JEFF — oil, Delray Oil, Inc., Guadalupe County, 57 thousand reported
  • ALLEN, JE -B- H 6ST — oil, Vintage Petroleum, Inc., Guadalupe County, 55 thousand reported
  • MCKEAN, AJ & JM H 4ST — oil, Vintage Petroleum, Inc., Guadalupe County, 55 thousand reported
  • MCEVER, C.D. -B- — oil, So-Tex Energy Inc., Guadalupe County, 55 thousand reported
  • KNOBLOCH, C. -A- — oil, Meridian Oil Production Inc., Guadalupe County, 54 thousand reported
  • ALLEN, J. E. -A- H 1ST — oil, Vintage Petroleum, Inc., Guadalupe County, 53 thousand reported
  • ROBERTS FEE — oil, Meridian Oil Production Inc., Guadalupe County, 53 thousand reported
  • WILLMAN, PAUL — oil, Darst Creek Oil Company, Guadalupe County, 52 thousand reported
  • DIX-MCKEAN "B" UNIT — oil, Meridian Oil Production Inc., Guadalupe County, 48 thousand reported
  • DIX & MCKEAN "C" 2H — oil, Vintage Petroleum, Inc., Guadalupe County, 48 thousand reported
  • DOEGE, ALFRED — oil, J-Energy, Guadalupe County, 47 thousand reported
  • ANDERSON, L. — oil, Meridian Oil Production Inc., Guadalupe County, 47 thousand reported
  • WILLE, H. — oil, Meridian Oil Production Inc., Guadalupe County, 46 thousand reported
  • DENMAN,DAN J. — oil, Delray Oil, Inc., Guadalupe County, 46 thousand reported
  • DIX MCKEAN 9H UNIT — oil, Texas Petroleum Investment Co., Guadalupe County, 45 thousand reported
  • BAKER, A J 15H — oil, Vintage Petroleum, Inc., Guadalupe County, 45 thousand reported
  • DOWDY, A. E. -C- — oil, Delray Oil, Inc., Guadalupe County, 44 thousand reported
  • KNOBLOCH "C" 4-H — oil, Texas Petroleum Investment Co., Guadalupe County, 42 thousand reported
  • DIX & MCKEAN "C" 3H — oil, Vintage Petroleum, Inc., Guadalupe County, 41 thousand reported
  • DENMAN -C- — oil, Meridian Oil Production Inc., Guadalupe County, 40 thousand reported
  • ANDERSON UNIT — oil, Texas Petroleum Investment Co., Guadalupe County, 40 thousand reported
  • KNOBLOCH OIL (EMPIRE) — oil, Meridian Oil Production Inc., Guadalupe County, 38 thousand reported
  • MARINES, L 3-H — oil, Vintage Petroleum, Inc., Guadalupe County, 38 thousand reported
  • CARTER, N. J. — oil, Cloughly Engineering, Guadalupe County, 37 thousand reported
  • POSEY & BAKER (CHEVRON) — oil, Meridian Oil Production Inc., Guadalupe County, 35 thousand reported
  • PB & POSEY — oil, Texas Petroleum Investment Co., Guadalupe County, 35 thousand reported
  • WRIGHT, W.A. -C- — oil, Spiller, H. G., Guadalupe County, 34 thousand reported
  • DIX, THOMAS 'A' — oil, Meridian Oil Production Inc., Guadalupe County, 33 thousand reported
  • ROAMEL, P. "C" — oil, Darst Creek Oil Company, Guadalupe County, 32 thousand reported
  • KNOBLOCH A 6-H — oil, Vintage Petroleum, Inc., Guadalupe County, 31 thousand reported
  • ALLEN -A- 10H — oil, Texas Petroleum Investment Co., Guadalupe County, 31 thousand reported
  • BODINE - JOSLIN — oil, B. J. P. Operating, Guadalupe County, 31 thousand reported
  • WYATT, EDDIE — oil, Jaty Energy, Inc., Guadalupe County, 30 thousand reported
  • KNOBLOCH C. A 04-H — oil, Vintage Petroleum, Inc., Guadalupe County, 30 thousand reported
  • DENMAN C 2H — oil, Texas Petroleum Investment Co., Guadalupe County, 29 thousand reported
  • WILLIE, H. 3-H — oil, Texas Petroleum Investment Co., Guadalupe County, 27 thousand reported
  • MILLER, RAND -42- — oil, E. T. Oil Company, Guadalupe County, 27 thousand reported
  • BRIETZKE, A. — oil, Jaty Energy, Inc., Guadalupe County, 27 thousand reported
  • APPLING, HESTER — oil, Rollert Co., Inc., The, Guadalupe County, 27 thousand reported
  • DENMAN "B" — oil, Meridian Oil Production Inc., Guadalupe County, 27 thousand reported
  • BAKER, D. D. — oil, Darst Creek Oil Company, Guadalupe County, 26 thousand reported
  • DENMAN, G.M. JR. — oil, Darst Creek Oil Company, Guadalupe County, 26 thousand reported
  • WERCHAN, R.B WRIGHT — oil, T-3 Oil Company, Guadalupe County, 25 thousand reported
  • CONLEY, LILLIAN — oil, Glenco Oil & Gas Company, Guadalupe County, 25 thousand reported
  • WRIGHT, -B- — oil, Spiller, H. G., Guadalupe County, 25 thousand reported
  • POSEY — oil, Seagull Operating Co., Inc., Guadalupe County, 24 thousand reported
  • HARRISON-DIX — oil, Meridian Oil Production Inc., Guadalupe County, 24 thousand reported
  • WRIGHT, PIERCE EST. -B- — oil, Cherry Oil & Gas, Guadalupe County, 24 thousand reported
  • APPLING, C. F. — oil, B. J. P. Operating, Guadalupe County, 23 thousand reported
  • SHANKLIN, W. R. "P" — oil, Allen & Grace Oil Company, Guadalupe County, 23 thousand reported
  • RABB, BESSIE — oil, Patton & Caddell Oil, Inc., Guadalupe County, 22 thousand reported
  • TADLOCK, A. U. -A- — oil, Darst Creek Oil Company, Guadalupe County, 21 thousand reported
  • HAASS, PAUL F. JR. "A" — oil, Staffa, Dottie R., Guadalupe County, 20 thousand reported
  • WRIGHT, W. A. -A- — oil, Spiller, H. G., Guadalupe County, 20 thousand reported
  • MALONE, CHESTER — oil, Malone Oil Production, Guadalupe County, 20 thousand reported
  • ELWOOD CARTER C — oil, Kidd Production Co., Guadalupe County, 19 thousand reported
  • ROAMEL, P. "A" — oil, Darst Creek Oil Company, Guadalupe County, 19 thousand reported
  • APPLING, W.A. -A- — oil, Spiller, Joseph A., Guadalupe County, 18 thousand reported
  • WAITERS PINK SR.,ET UX — oil, Seaco Production, Guadalupe County, 18 thousand reported
  • HOWELL LEASE #3 (S) — oil, Selig Bros. Joint Venture, Guadalupe County, 18 thousand reported
  • WARD — oil, Source Petroleum Inc., Guadalupe County, 18 thousand reported
  • BEHRENS, CHARLES — oil, Doege, Donald, Guadalupe County, 18 thousand reported
  • ROBERTS, VIVIAN — oil, Darst Creek Oil Company, Guadalupe County, 18 thousand reported
  • MILLER, RAND — oil, Meridian Oil Production Inc., Guadalupe County, 18 thousand reported
  • APPLING, ROSS — oil, Patton & Caddell Oil, Inc., Guadalupe County, 17 thousand reported
  • HOFFMAN, LILLIE — oil, Cloughly Engineering, Guadalupe County, 16 thousand reported
  • TILLEY, D. — oil, Nelson Cobra Oil Company, Guadalupe County, 16 thousand reported
  • SCHIEVELBIEN, ALBERT — oil, Seaco Production, Guadalupe County, 16 thousand reported
  • OBREGON B — oil, Scully And Smith Oil Corporation, Guadalupe County, 16 thousand reported
  • WOEHLER, HERMAN E. — oil, Garner, Larry, Guadalupe County, 16 thousand reported
  • DOWDY, A. E. — oil, Serra Energy, Inc., Guadalupe County, 16 thousand reported
  • DENMAN, GILBERT M., JR., ET AL — oil, Delray Oil, Inc., Guadalupe County, 16 thousand reported
  • ROBERTS, J. M. — oil, Meridian Oil Production Inc., Guadalupe County, 16 thousand reported
  • APPLING, COLLIE B. — oil, Patton & Caddell Oil, Inc., Guadalupe County, 15 thousand reported
  • HARRISON-DIX — oil, Meridian Oil Production Inc., Guadalupe County, 15 thousand reported
  • CASTER, CLEMMIE — oil, Rayalto Oil & Gas, Inc., Guadalupe County, 15 thousand reported
  • MCEVER, C.D. -A- — oil, So-Tex Energy Inc., Guadalupe County, 15 thousand reported
  • ACHTERBERG, ANTON — oil, B. & L. Oil Company, Guadalupe County, 15 thousand reported
  • CARTER, ELWOOD -A- — oil, Cloughly Engineering, Guadalupe County, 14 thousand reported
  • KUHN — oil, Production Resources, Inc., Guadalupe County, 14 thousand reported
  • MATTKE, ALBERT — oil, Robbins, L. C., Guadalupe County, 14 thousand reported
  • MATTKE, ALBERT -A- — oil, O & R Production, Guadalupe County, 14 thousand reported
  • CARTER — oil, Cloughly Engineering, Guadalupe County, 14 thousand reported
  • MILLER, RAND TRACT 3 — oil, Darst Creek Oil Company, Guadalupe County, 14 thousand reported
  • ANDERSON, C. (CHEVRON) — oil, Meridian Oil Production Inc., Guadalupe County, 13 thousand reported
  • ROSS, C.E. -B- — oil, T. A. W. Company, Guadalupe County, 13 thousand reported
  • HOERMANN, SYDNEY — oil, Hoermann, S. E., Guadalupe County, 13 thousand reported
  • RANFT — oil, LTS Energy, L.P., Guadalupe County, 13 thousand reported
  • WEBB, MAX L. — oil, Rollert Co., Inc., The, Guadalupe County, 13 thousand reported
  • TADLOCK, H. H., -B- — oil, Darst Creek Oil Company, Guadalupe County, 13 thousand reported
  • MCMAHON, JOHN — oil, Terra Locus Services, Guadalupe County, 13 thousand reported
  • GOLDEN-MCKEAN — oil, Meridian Oil Production Inc., Guadalupe County, 13 thousand reported
  • SCHROEDER — oil, Sue-Ann Production Company, Guadalupe County, 12 thousand reported
  • TADLOCK, H. H., ETAL — oil, Darst Creek Oil Company, Guadalupe County, 12 thousand reported
  • APPLING-RABB — oil, Rayalto Oil & Gas, Inc., Guadalupe County, 12 thousand reported
  • BALL, JAMES — oil, Zaf Oil, Guadalupe County, 12 thousand reported
  • GREINER, FRED P. — oil, T. A. W. Company, Guadalupe County, 12 thousand reported
  • DENMAN, DAN J. — oil, Delray Oil, Inc., Guadalupe County, 12 thousand reported
  • SCHIEVELBEIN, B. -A- — oil, Schievelbein, Bryan O., Guadalupe County, 12 thousand reported

Production figures are as reported to the Railroad Commission of Texas. Values shown on lease pages are estimates produced by fitting a decline curve to that reported history; they are not offers or appraisals.