Eagleford:

ATASCOSA (TX)
BASTROP (TX)
BEE (TX)
BRAZOS (TX)
BURLESON (TX)
DEWITT (TX)
DIMMIT (TX)
FAYETTE (TX)
FRIO (TX)
GONZALES (TX)
KARNES (TX)
LA SALLE (TX)
LAVACA (TX)
LEE (TX)
LEON (TX)
LIVE OAK (TX)
MADISON (TX)
MAVERICK (TX)
MCMULLEN (TX)
MILAM (TX)
WEBB (TX)
WILSON (TX)
ZAVALA (TX)

APPALACHIA:

BELMONT (OH)
CARROLL (OH)
COLUMBIANA (OH)
COSHOCTON (OH)
GUERNSEY (OH)
HARRISON (OH)
HOCKING (OH)
JEFFERSON (OH)
MAHONING (OH)
MONROE (OH)
MORGAN (OH)
MUSKINGUM (OH)
NOBLE (OH)
PERRY (OH)
PORTAGE (OH)
STARK (OH)
TRUMBULL (OH)
TUSCARAWAS (OH)
WASHINGTON (OH)
WAYNE (OH)
BARBOUR (WV)
BOONE (WV)
BRAXTON (WV)
BROOKE (WV)
CABELL (WV)
CALHOUN (WV)
CLAY (WV)
DODDRIDGE (WV)
FAYETTE (WV)
GILMER (WV)
GRANT (WV)
GREENBRIER (WV)
HAMPSHIRE (WV)
HANCOCK (WV)
HARDY (WV)
HARRISON (WV)
JACKSON (WV)
KANAWHA (WV)
LEWIS (WV)
LINCOLN (WV)
LOGAN (WV)
MARION (WV)
MARSHALL (WV)
MASON (WV)
MC DOWELL (WV)
MERCER (WV)
MINERAL (WV)
MINGO (WV)
MONONGALIA (WV)
MONROE (WV)
MORGAN (WV)
NICHOLAS (WV)
OHIO (WV)
PENDLETON (WV)
PLEASANTS (WV)
POCAHONTAS (WV)
PRESTON (WV)
PUTNAM (WV)
RALEIGH (WV)
RANDOLPH (WV)
RITCHIE (WV)
ROANE (WV)
SUMMERS (WV)
TAYLOR (WV)
TUCKER (WV)
TYLER (WV)
UPSHUR (WV)
WAYNE (WV)
WEBSTER (WV)
WETZEL (WV)
WIRT (WV)
WOOD (WV)
WYOMING (WV)
ALLEGHENY (PA)
ARMSTRONG (PA)
BEAVER (PA)
BEDFORD (PA)
BLAIR (PA)
BRADFORD (PA)
BUTLER (PA)
CAMBRIA (PA)
CAMERON (PA)
CENTRE (PA)
CLARION (PA)
CLEARFIELD (PA)
CLINTON (PA)
COLUMBIA (PA)
ELK (PA)
FAYETTE (PA)
FOREST (PA)
FRANKLIN (PA)
GREENE (PA)
HUNTINGDON (PA)
INDIANA (PA)
JEFFERSON (PA)
LACKAWANNA (PA)
LAWRENCE (PA)
LUZERNE (PA)
LYCOMING (PA)
MC KEAN (PA)
MERCER (PA)
PIKE (PA)
POTTER (PA)
SOMERSET (PA)
SULLIVAN (PA)
SUSQUEHANNA (PA)
TIOGA (PA)
VENANGO (PA)
WARREN (PA)
WASHINGTON (PA)
WAYNE (PA)
WESTMORELAND (PA)
WYOMING (PA)
ALLEGANY (NY)
BROOME (NY)
CATTARAUGUS (NY)
CHAUTAUQUA (NY)
CHEMUNG (NY)
ERIE (NY)
LIVINGSTON (NY)
SCHUYLER (NY)
STEUBEN (NY)
WYOMING (NY)

PERMIAN:

CHAVES (NM)
EDDY (NM)
LEA (NM)
ROOSEVELT (NM)
ANDREWS (TX)
BAILEY (TX)
BORDEN (TX)
COCHRAN (TX)
COKE (TX)
CONCHO (TX)
CRANE (TX)
CROCKETT (TX)
CROSBY (TX)
CULBERSON (TX)
DAWSON (TX)
DICKENS (TX)
ECTOR (TX)
EDWARDS (TX)
FISHER (TX)
FLOYD (TX)
GAINES (TX)
GARZA (TX)
GLASSCOCK (TX)
HALE (TX)
HOCKLEY (TX)
HOWARD (TX)
IRION (TX)
KENT (TX)
KIMBLE (TX)
LAMB (TX)
LOVING (TX)
LUBBOCK (TX)
LYNN (TX)
MARTIN (TX)
MENARD (TX)
MIDLAND (TX)
MITCHELL (TX)
MOTLEY (TX)
NOLAN (TX)
PECOS (TX)
REAGAN (TX)
REAL (TX)
REEVES (TX)
SCHLEICHER (TX)
SCURRY (TX)
STERLING (TX)
SUTTON (TX)
TERRELL (TX)
TERRY (TX)
TOM GREEN (TX)
UPTON (TX)
VAL VERDE (TX)
WARD (TX)
WINKLER (TX)
YOAKUM (TX)

ANADARKO:

OCHILTREE (TX)
LIPSCOMB (TX)
ROBERTS (TX)
HEMPHILL (TX)
WHEELER (TX)
TEXAS (OK)
BEAVER (OK)
ELLIS (OK)
ROGER MILLS (OK)
BECKHAM (OK)
DEWEY (OK)
CUSTER (OK)
WOODS (OK)
MAJOR (OK)
ALFALFA (OK)
GARFIELD (OK)
BLAINE (OK)
KINGFISHER (OK)
LOGAN (OK)
PAYNE (OK)
LINCOLN (OK)
OKLAHOMA (OK)
CANADIAN (OK)
CADDO (OK)
GRADY (OK)
STEPHENS (OK)
CARTER (OK)
GARVIN (OK)
MCCLAIN (OK)

HAYNESVILLE:

MARION (TX)
HARRISON (TX)
UPSHUR (TX)
GREGG (TX)
SMITH (TX)
CHEROKEE (TX)
ANGELINA (TX)
NACOGDOCHES (TX)
RUSK (TX)
PANOLA (TX)
SHELBY (TX)
SAN AUGUSTINE (TX)
SABINE (TX)
NATCHITOCHES (LA)
CADDO (LA)
DE SOTO (LA)
SABINE (LA)
BOSSIER (LA)
RED RIVER (LA)
BIENVILLE (LA)
CLAIBORNE (LA)
UNION (LA)
WEBSTER (LA)
LAFAYETTE (AR)
COLUMBIA (AR)


NIOBRARA:

MOFFAT (CO)
RIO BLANCO (CO)
GARFIELD (CO)
MESA (CO)
ROUTT (CO)
JACKSON (CO)
LARIMER (CO)
WELD (CO)
MORGAN (CO)
JEFFERSON (CO)
ARAPAHOE (CO)
ADAMS (CO)
WASHINGTON (CO)
LOGAN (CO)
SEDGWICK (CO)
PHILLIPS (CO)
YUMA (CO)
KIT CARSON (CO)
CHEYENNE (CO)
BOULDER (CO)
SHERMAN (KS)
CHEYENNE (KS)
LARAMIE (WY)
ALBANY (WY)
CARBON (WY)
PLATTE (WY)
GOSHEN (WY)
NIOBRARA (WY)
CONVERSE (WY)
NATRONA (WY)
WESTON (WY)
CAMPBELL (WY)
JOHNSON (WY)
GARDEN (NE)
DEUEL (NE)
CHEYENNE (NE)

BAKKEN:

SHERIDAN (MT)
ROOSEVELT (MT)
MCCONE (MT)
RICHLAND (MT)
DAWSON (MT)
DIVIDE (ND)
WILLIAMS (ND)
MCKENZIE (ND)
GOLDEN VALLEY (ND)
BILLINGS (ND)
STARK (ND)
DUNN (ND)
MOUNTRAIL (ND)
BURKE (ND)
RENVILLE (ND)
BOTTINEAU (ND)
MCHENRY (ND)
MCLEAN (ND)
MERCER (ND)
WARD (ND)