Merganser Unit

Oil & Gas Property in Atascosa County, TX

Property Summary

Key data points for Merganser Unit

CountyAtascosa County, TX
OperatorPILLAR EFS, LLC
Production DatesAug 2014 - Oct 2025
Total Oil Production126,313 BBLs
Total Gas Production131,057 MCF
Recent Oil Production319 BBLs in Oct 2025
Recent Gas Production101 MCF in Oct 2025
Wells on Property1

Our Valuation Estimates for Merganser Unit

ShaleAssessment

$16,513 *

MarketMultiple

$34,666 **

* Assessment based on future expected revenue
** Based on a 36 month multiple of average monthly estimated revenue

Based on a decimal interest

Merganser Unit Production Graph

Aggregated production of all wells and leases associated with this property
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to oil and gas production for Merganser Unit
from Aug 2014 to Oct 2025

Wells on Merganser Unit

API #Well NameOperatorStatusCountyEst. Daily Oil Prod.Est. Daily Gas Prod.Est. Daily Water Prod.LatitudeLongitude
42-013-34974MERGANSER UNIT 1HPILLAR EFS, LLCProducingAtascosa County, TX28.886665-98.369838

Leases included in Merganser Unit

Lease #Lease NameOperatorCountyMonthly Oil Prod.Monthly Gas Prod.
01-17984MERGANSER UNITPILLAR EFS, LLCAtascosa County, TX

Nearby Properties

These are the closest 20 properties to the Merganser Unit property.

Property NameLocationOil Prod.Gas Prod.Prod. Period
Butts & SawyerAtascosa County, TX318 BBLs254 MCFOct 2025
DinsmoorAtascosa County, TX267 BBLs0 MCFNov 2025
Drake UnitAtascosa County, TX374 BBLs328 MCFNov 2025
Elder UnitAtascosa County, TX725 BBLs828 MCFNov 2025
EldsAtascosa County, TX304 BBLs34 MCFNov 2025
Excalibur/FalconAtascosa County, TX0 BBLs0 MCFMay 2013
Free Ride Aw 1HAtascosa County, TX2,624 BBLs881 MCFOct 2025
HindesAtascosa County, TX0 BBLs0 MCFDec 1998
Kansu RedAtascosa County, TX414 BBLs111 MCFNov 2025
KorusAtascosa County, TX0 BBLs0 MCFFeb 2023
OcelotAtascosa County, TX3,840 BBLs1,915 MCFOct 2025
Ocelot AllocationAtascosa County, TX3,361 BBLs481 MCFOct 2025
Point Break UnitAtascosa County, TX3,829 BBLs1,629 MCFOct 2025
Raft A UnitAtascosa County, TX1,549 BBLs188 MCFOct 2025
Raft B UnitAtascosa County, TX1,778 BBLs155 MCFOct 2025
Road House AllocationAtascosa County, TX4,281 BBLs2,496 MCFOct 2025
Slice Aw 1HAtascosa County, TX3,067 BBLs1,052 MCFOct 2025
Teal UnitAtascosa County, TX357 BBLs361 MCFNov 2025
TroellAtascosa County, TX594 BBLs0 MCFOct 2025
TuleAtascosa County, TX402 BBLs91 MCFNov 2025

Frac'ing activity on Merganser Unit

API #Well NameStart DateEnd DateVertical DepthTotal Water Volume
42-013-34974MERGANSER UNIT # 1H

Owners of Merganser Unit

Royalty Ownership data is obtained from public records
YearOwnerProperty NameOperatorPercentageInterest TypeAppraisal ValueLegal Desciption
2025PILLAR EFS LLCMERGANZER UNIT IHPILLAR EFS LLC
2025REED SARAH M & ET UX STEWARD LINDA L TRUSTEESMERGANZER UNIT IHPILLAR EFS LLC
2025CHARLESS FAMILY REV TRUSTMERGANZER UNIT IHPILLAR EFS LLC
2025MOTAL CHARLY ANN THORPMERGANZER UNIT IHPILLAR EFS LLC
2025HENNESSEY 2011 FAMILY TRUST AGREEMENT DTD 7-19-2011MERGANZER UNIT IHPILLAR EFS LLC
2025JOHNSTON CAROLY HENNESSEYMERGANZER UNIT IHPILLAR EFS LLC
2025WINTER MARTHA WISEMAN TRUST FBO WINIFRED WINTER COCKEMERGANZER UNIT IHPILLAR EFS LLC
2025COCKE WINIFRED WINTERMERGANZER UNIT IHPILLAR EFS LLC
Displaying 8 of 23 Owners   --   Full Ownership Data Available for Subscribers Only

Oil & Gas Sales on Merganser Unit

Lease #Lease NameReporting PeriodProductVolumeValueGross PricePurchaserProducer
Lease #Lease NameReporting PeriodProductOil VolumeOil ValueCalculated Oil PricePurchaserProducer
01-17984MERGANSER UNITApr 2025EXXONMOBIL OIL CORPORATIONPILLAR EFS, LLC
01-17984MERGANSER UNITMar 2025EXXONMOBIL OIL CORPORATIONPILLAR EFS, LLC
01-17984MERGANSER UNITFeb 2025EXXONMOBIL OIL CORPORATIONPILLAR EFS, LLC
01-17984MERGANSER UNITJan 2025EXXONMOBIL OIL CORPORATIONPILLAR EFS, LLC
01-17984MERGANSER UNITDec 2024EXXONMOBIL OIL CORPORATIONPILLAR EFS, LLC
01-17984MERGANSER UNITOct 2024EXXONMOBIL OIL CORPORATIONPILLAR EFS, LLC
01-17984MERGANSER UNITSep 2024HARVEST MARKETING & TRADING, LLCPILLAR EFS, LLC
01-17984MERGANSER UNITAug 2024HARVEST MARKETING & TRADING, LLCPILLAR EFS, LLC
01-17984MERGANSER UNITAug 2024SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITJul 2024SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITJun 2024SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITMay 2024SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITApr 2024SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITMar 2024SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITFeb 2024SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITJan 2024SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITDec 2023SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITNov 2023SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITOct 2023SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITSep 2023SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITAug 2023SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITJul 2023SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITJun 2023SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITMay 2023SHELL TRADING (US) COMPANYPILLAR EFS, LLC
01-17984MERGANSER UNITApr 2023SHELL TRADING (US) COMPANYPILLAR EFS, LLC