There have been many recent discussions about the eastern extent of economic Eagle Ford oil. I have spoken with many individuals with first hand knowledge of leasing activity in counties such as Lavaca and Fayette. I want to investigate the area near Gonazales County and provide some basic permit and production maps.
First is a map of Gonzales, Lavaca, Dewitt and Fayette producers coming online since 1/1/2010, colored by max monthly liquids. Apparent is the Dewitt County sweet spot we have documented many times in this blog. Not only are there very high liquids volumes, but present is a significant gas-drive mechanism supporting it. Max Monthlys on the order of 3 MMcf/D + 1000 BC/D. The wells across the Gonazales line are the EOG oil wells, specifically the Marshall and surrounding leases. Speaking of the Marshall lease, I’ll also show an updated permitted well location map of those EOG wells right below. The Fayette producers are Austin Chalk coming in at comparibly modest IPs (about 150-200 BOPD) and no producers in Lavaca.
Now here are permits since 1/1/2010. I excluded the EOG permits in large part because I have blogged on them so many times readers of this blog have seen it a hundred times. So here are 83 permits with Eagle Ford specified.
Quite a few interesting things here. The ZaZa permits in Lavaca are new as of March. They are permitting in a highly prospective area in NW LaSalle, also blogged on earlier, and I believe they are in a JV with a certain large E&P company that began spudding late last year. Southern Bay has permitted in Fayette. Forest and Penn Virginia are exploring updip of the EOG wells.
We have nice internal isopach thickness and depth maps generated using Sequence Stratigraphy for this area available to our clients and the findings are substantial.


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There seems to be a big lag between the time a well is permitted and when it appears on the RRC website. Similarly, the weekly rig count consistently fails to identify some rigs that have moved on location, have spudded in, and have commenced drilling. I am not going so far as to say there is a conspiracy, but I will go out on a limb and say this delay in getting information out to the public may be coordinated. Hide the ball is the name of the game for everything Eagle Ford.
Have mineral interest in 428 ac. tract in Lee Co. near Fayette Co. line. Eagle Ford will be about 10,100′ and +or- 180′ thick. Anxious to see production walked across Fayette during 2011.
Available minerals for lease in and around Waelder, TX in Gonzales County along the Old Moulton Road in the Sarah Smith League and approx. 300 acres triangle between Old Moulton Road, Hwy 90, and IH-10 East outside the Waelder, TX city limits. In addition, the Gibson Survey north of Hwy 90 East, IH-10 East, and Armstrong-Derry Road continuing past Armstrong Colony and along Old Waelder Road (5225 Old Waelder Road) J.S. Menefee Abstract-239 on and beyond the Gonzales County and Fayette County line. These areas all have seen production before “Pugh Clause” and production as early as 1941 and in the oil window of the Eagle Ford Shale Play. I understand that the play is btwn 7,000′ and 10,000′ +/- in these areas and I believe some have current production in this region at 2250′ since 1941 beginning with Continental/Conoco Oil. I know landmen are beginning to creep into this area for that Sweet Oil! Thanks, for this information on this region along the Gonzales/Fayette County line.