horizontal development of a conventional shallow oil ... · endeavor acreage key oil field wells...
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Horizontal Development of a Conventional Shallow Oil Reservoir
San Miguel Formation
Maverick Basin, Texas
Dimmit, Maverick, & Webb Co.’s
Global Paleographic SettingCretaceous Deltas of Western Interior Seaway
Modified from Ewing, 2011
Maverick Basin Structural Setting Upper Cretaceous Producing Fields
2nd San Miguel Type Log
Reservoir Parameters
Formation 2nd San Miguel
Depth 2,000-4,000’ TVD
Net Sand Thickness 25-50’
Porosity 15-20%
Permeability .01-.1 millidarcies
Oil Gravity 42 API
BTU 1,300 MMBTU
2nd San Miguel Top
2nd San Miguel Base
Structure Map
Sacatosa45 MMBO
Hugh Fitzsimmons 6 MMBO
Pena Creek15 MBO
El Indio25 MBO
• Maverick Basin, South Texas
• Thick, continuous sand deposited in shallow marine
environment; covers 950,000 acres over four
counties
• Low permeability sand with high porosity- large oil-
in-place with low vertical recovery factor
• 2 Billion barrels oil-in-place in core play area
• Produced over 50 MMBO + gas from vertical fields
• Shallow depths: 2,000-4,000’ TVD
• D&C costs average $2.3M
• EUR average- 258 MBO, 58 MB NGL, 579 MMCF
• 85 horizontal wells drilled to date
• 700+ locations on Endeavor’s 132k acre leasehold;
years of drilling inventory
2nd San Miguel Play
30 miles
Productive Region
Endeavor Acreage
KEY
Oil Field
Wells w/oil show
Acreage Delineated with Superior Well Results
San Miguel Lateral well results
Endeavor Acreage
3
1
2
4
5
78
Avg 30 Day IP
# Well NameComp. Date BO/d MCF/d BOE/d
1 Serena 8003H Aug-18 385 241 425
2 HR 146H Aug-18 380 232 419
3 Serena 3401H Apr-17 332 270 377
4 HR 205H Dec-17 267 517 353
5 Cundieff 3002H May-18 259 690 374
6 Winship 2801H Feb-17 196 255 238
7 SPR 844H Apr-18 251 735 373
8 SPR 940H Sept-18 276 140 299
Endeavor Acreage Totals
Gross/net acres: 132,881/ 125,381
6
7
ENG San Miguel Snapshot
November production:
Gross: 5.4 MBOPD, 20 MMCFPD
1,000
10,000
100,000
1,000,000
Nov-15 Feb-16 May-16 Aug-16 Nov-16 Feb-17 May-17 Aug-17 Nov-17 Feb-18 May-18 Aug-18 Nov-18
Barrels Oil/Month
MCF/Month
ENG San Miguel Production
Gross Gas Gross Oil NRI Gas NRI Oil
Type Curve Analysis
Contact Info
Endeavor Natural Gas, LP
1201 Louisiana, Suite 3350 Houston, Texas 77002
713-658-8555
Bill Russ x260
Rick Jenner x261
Thad Bay x253