Posting this for Grimes County since there is no Madison County section.


EOG appears to be quietly chasing the "EagleBine" in NW Madison County. This area is about 10 miles south of the Rippy Aguila Vado Eagle Ford field in central Leon County. These are very poor Eagle Ford wells for a variety of reasons..
EOG has moved south and into the Eagle Bine play area - i.e. where there are more thin bedded clastics in the Eagle Ford system that gives it the reservoir quality that is needed to make it work. The Rippy area in Leon County appears to have a lot of clay in the system but very little in the way of thin bedded clastics. 
Totally different play than which is seen in S Tx Eagle Ford (which is a carbonate mudstone play)
Some PDF's attached for this area and the initial EOG completion (which appeared to have a lot of mechanical problems).
EOG's activity in NW Madison and south of Normangee is just up the road (north) of the very active Eagle Bine area around North Zulch. CML, Woodbine Acquisitions, Crimson and others have a lot of very good Eagle Bine wells in this area.
Figure that EOG is trying to stay in the same Eagle Bine delta complex that provides the clastics that makes the Eagle Bine work.
EOG has already drilled one "Eagle Ford" well (Donaho 1H) in the NW corner of Madison County about 3 miles west of the REA 1H. Also added PDF plot of the Donaho production.
EOG is going a "three spot" drilling program in the Votaw survey about 3 miles south of Normangee. The well that you sent me (REA 1H) is the second of two horizontals that parallel each other in this area. Where as the REA 1H is planned to drill North to South, EOG has drilled another horizontal (Blazek Peters 1H) that goes from south to north.
And then they have a vertical monitor well (Blazek Peters 1) sitting between the two wells.
Interesting stuff - especially considering EOG being so quiet about it




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Thanks for the info Mark.  My sister owns minerals in that general area and was approached by someone last week who was trying to buy them.  She's out of town right now but when she gets back I'll try to locate her abstract numbers in relation to the above wells.

Sounds good - the Eagle Bine play is definitely on the back burner as to the main EF trend, but still sme prolific potential - albeit over a much more limited area.


Below is an article that came out today on ZaZa's interest in the Eagle Bine in this same area .


DUG Eagle Ford 2012: ZaZa Zooms Into The Eaglebine

October 22, 2012

ZaZa Energy Corp. has been playing the Eagle Ford since its early days, and now the company is hip-deep in the emerging Eaglebine. Thomas D. Bowman, vice president, evaluation, geology and geophysics for ZaZa, offered comparisons and contrasts between the traditional Eagle Ford south of the San Marcos Arch and the Eaglebine area to the north. Bowman talked about the emerging hybrid Eaglebine play at Hart Energy’s DUG Eagle Ford 2012 Conference & Exhibition.

The Eaglebine is the East Texas extension of the Eagle Ford play. Eaglebine is a coined term that encompasses the Eagle Ford Group and the Woodbine Group, including all of the section from the base of the Austin Chalk to the top of the Buda Lime. The interval hosts both conventional and unconventional reservoirs.

Unlike the Maverick Basin, which is dominated by carbonate deposition, the East Texas Basin contains abundant clastics. Silica-rich sands and silts are intermixed in the entire Eaglebine section, Bowman said. The very thick interval contains more than 1,000 feet of mixed lithology sediments. Within the Eaglebine, there are two broad divisions: the upper Eaglebine has numerous sandstone packages interbedded with organic-rich shales, and the lower Eaglebine is more of a shale resource play. Additionally, deeper Lower Cretaceous targets such as the Buda, Georgetown, Edwards and Glen Rose also exist in the area.

Since 2007, about 100 horizontal wells targeting Woodbine clastic targets have been drilled in the East Texas area. Recently, operators have begun to focus on the lower portion of the Eaglebine. Interest was spurred by two recent wells that had IP rates of more than 600 barrels of oil per day  Weber Energy’s  Lewis #1H  and Crimson Energy Partners’ Jackie Robinson, both in Brazos County.

Both of the lower Eaglebine completions are in the area ZaZa is particularly intrigued with: a restricted sub-basin that lies between the Angeline-Caldwell Flexure and the Sligo/Edwards shelf edges. This sub-basin, in portions of Brazos, Madison, Grimes, Walker and Leon counties, features considerable thicker sections of several formations including the Kiamichi and the Paluxy shales, noted Bowman.

At present, ZaZa has its own test under way  in Walker County   and another permitted in Grimes County. Other active operators include Woodbine Acquisition, Apache Corp., Halcon Resources, Devon Energy, Chesapeake EnergyRange Resources, Apollo Energy, Encana, Navidad Resources, SM Energy and more.

Thanks Mark,

  It is interesting also that Petrohawk renamed themselves Halcon (HK) after the BP buy out, and they were the founders of the EFS in LaSalle Co. and they have now moved up into the EAGLEBINE areas of East Texas ------------ Reportedly Halcon has already drilled some very "good" wells near Bedias and has leased large areas in several counties in East Texas.

  To my knowledge EOG has leases as far East as Crockett in Houston County to explore the Eaglebine

    Articles usually vaguely  define "Eaglebine" as the lower Woodbine what is the best guess for the oil producing zone?   Eagle Ford ? Dexter ? Louisville?

IMO, the Eagle Bine is a hybrid mix of Woodbine aged clastics that have been deposited into a time equivalent Eagle Ford "sea" (organic source). Key is the clastics contribute the conventional reservoir component (oftentimes highly laminated) encased in organic rich EF shale complex. Overall, the section varies across the area (no surprise there)

There is a separate Dexter play as well as a Lewisville play which are more conventional targets

Crimson Exploration has a good presentation out there with log sections showing the EagleBine (too large to attach here).

FYI, PetroHawk didn't rename themselves, the company was purchased by BHP Billiton.  Floyd Wilson, the founder of PetroHawk then started up a new company called Halcon and got his old stock ticker (HK) back.  Not trying to be a stickler here, just letting you know.  Thanks for the info!

Had a chance to glance at a commercial drilling rig locator and it showed Halcon as having 3 rigs running in Leon and 1 in Madison Co.

  Also counting about 25 rigs working Eaglebine within 30 miles of Madisonville which by chance will partially cover 3 TRRC Districts, and 6 counties ---- Madison,Grimes, Brazos,Leon,Walker and Houston Counties and most of the drilling has already switched from vertical test wells to Horizontal now so I guess one might say the play is here to stay.

Have to agree with you - Eagle Bine not as widespread as the "tradiional" Eagle Ford play in South and Central (Karnes et al) counties, but extent over 4-5 counties still makes for a nice little play.

BTW thanks for the ZaZa article Mark,

 "lower Eaglebine is more of a shale resource play" -------- what does this quote from that article mean ?

Here is ZaZa's presentation from the 2012 DUG in San Antonio - totally focused on Eaglebine play. Some great stuff. Ties back to the article that was put out here last week.


"Lower Eaglebine is more of a shale resource play" means that it does not contain the clastic more conventional members that you see in the Upper Eaglebine and that the section is mostly an organic rich "shale". A resource play is pretty much a consistent play as to areal extent - similar to the Eagle Ford in South Texas which is a carbonate mudstone resource play. Or the Barnett which is a silica rich resource play.


Not all shales are the same.


Of course, there will be heterogeneity in the Lower Eaglebine which will impact producibility. Some comments in the Za Za presenation on this interval may be of concern - reason for lower resistivity in the Lower Eaglebine is tied to clay content.


Too much clay can mean too much ductility (and more difficult to fracture).


Another area of concern for the Lower Eaglebine is its location between the underlying Buda and overlying Clastic Woodbine sections. Both can be water bearing in various areas - and if so, any Lower Eaglebine frac runs the risk of frac'ing into water and putting a major negative "hit" on any completion.


Thx again Mark,

 One thing that I notice is the "Angelina -- Calwell Flexture" in the Now known Eaglebine area --------- is this a fault ? is it an important feature to this play and define the scope ?


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