Transcript Slide 1

North Carolina Department of Revenue
2014 Advanced Real Property Seminar
September 24, 2014 ¤ Greensboro, N.C.
“Shale Gas 101:
Natural Gas Exploration / Development:
A North Carolina Perspective”
presented by
Dr. Kenneth B. Taylor, P.G.
State Geologist of North Carolina and Chief
N.C. Geological Survey
Division of Energy, Minerals, and Land Resources
[email protected]
(919) 707-9211
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During the N.C. Geological Survey’s 190 years
of service to the State, we have been tasked to
examine, describe and map the geology,
geologic hazards, and mineral resources of the
State and publish these findings in NCGS
reports and maps.
We are required to provide unbiased, impartial
and relevant technical information to all parties
and be the custodian of maps, reports, rock
cores, cuttings, geophysical logs, and working
papers generated by the Survey or donated to
the Survey.
Conventional or Continuous (Unconventional)
Kerogen type and maturity (Tmax) – multiple wells
Simpson #1 – LE-OT-1-98
Dummitt Palmer #1 - LE-OT-82
Bobby Hall #1 – LE-OT-2-83
LE-C-4-45 – BDH-9
USBM2
Conventional Oil Exploration
Esso No. 1 Hatteras Light – Drilling and analysis in 1946; 10,044 ft total depth (TD),
deepest drilled well in State;drilled 100+ feet into basement rock; no shows oil or gas
Esso No. 2 Pamlico Sound – API No. 32-055-2; Drilling and analysis in 1947;
6,410 ft TD to L. Cretaceous; no shows of oil or gas
Well Count by County (Summary)
• Total number of oil/gas test wells – 128
(126 plugged and abandoned with two wells
Simpson #1and Butler #3 shut-in (under
bond of $5,000 each).
• First: Craven County in 1925 Great Lakes #2 –
total depth 2,404 ft.
• Last: Lee County in 1998 – Butler #3 – total
depth 2,550 ft.
• Top five counties: (1) Onslow with 22
wells; (2) Carteret and Brunswick tie with
16 wells; (4) Dare with 15 wells; (5) Hyde
with 10 wells.
The most active exploration years, those with ten or more
wells completed are: 1971 with 19; 1969 with 13; 1959 with 11;
and 1966 with 10.
Conventional or Continuous (Unconventional)
Continuous or Unconventional
Hydrocarbons are cooked and cannot migrate
from the source rocks due to low permeability
(rocks do not have inter-connected pathways
to permit fluids or gases to flow through the
rocks).
In order to release the hydrocarbons, a
significant increase in the rock permeability is
required using hydraulic fracturing.
Wells are drilled with horizontal laterals so that
a larger volume of source rock is in contact
with the well bore.
• Deep River Basin – 150-mile-long northeast trending
half-graben (rift basin) with a steeply dipping eastern
border fault.
• ~7,000 feet of Triassic strata.
• Lake deposits similar to African rift valley lakes.
• ~59,000+ acre prospective area.
• Total petroleum system containing:
•Source rock
•Seal
•Traps / reservoir
• Relatively untested exploration
area.
Generalized cross section
From Olsen and others, 1991
Shows
= oil
= gas
11 March 2014 – APPEX
London
J.C. Reid – N.C. Geological Survey
919.707.9205 – [email protected]
15
Bobby Hall #1
TD = 4,610 ft
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Sediments are predominantly gas prone with some oil
shows.
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TOC data exceeds the conservative 1.4% threshold
necessary for hydrocarbon expulsion.
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Organic matter derived from terrestrial Type III woody
(coaly) material and from lacustrine Type I (algal
material).
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Thermal alteration data (TAI) and vitrinite reflectance
data (%Ro) indicate levels of thermal maturity suitable
to generate hydrocarbons.
Reid and Milici (USGS OFR 2008-1108)
U. S. Geological
Survey (USGS)
East Coast
Mesozoic
Basins
Assessment
Fact Sheet 2012-3075
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Fact Sheet 2012-3075 -- “Assessment of
Undiscovered Oil and Gas Resources of the East
Coast Mesozoic Basins of the Piedmont, Blue
Ridge Thrust Belt, Atlantic Coastal Plain, and New
England Provinces, 2011” released June 2012.
Methodology: Numerical, conservative approach
computed by the U.S. Geological Survey. Data
from North Carolina presented to USGS in July
2011.
Deep River Basin: Mean 1,660 billion cubic feet
of gas (BCFG); Mean 83 million barrels of
natural gas liquids (MMBNGL).
Dan River – Danville Basin: Mean 49 BCFG; no
natural gas liquids.
Taxation of Oil and Gas Resources
Severance Tax – a percentage of the production.
Current rate for North Carolina
(1) Oil and Condensates Rate. – three and one-half
percent (3.5%).
(2) Gas Rate:
Marginal Rate. – Rate is six-tenths of one
percent (0.6%) on wells producing <100
MCF per day.
Gas Rate. – applied to the delivered to market
value of the gas sold.
Up to $3.00 per MCF; rate is 0.9%
$3.01 per MCF to $4.00; rate is 1.9%
Over $4.01 per MCF; rate is 2.9%
Taxation of Oil and Gas Resources
Ad Valorem Tax -- Latin for “according to value”.
In Texas and some other states, Ad Valorem taxes on
energy minerals are levied at the county level.
This tax becomes payable only when minerals are
producing, and are billed / collected once a year.
Ad Valorem is levied in addition to state severance
taxes.
Texas requires the use of the Discounted Cash Flow
(DCF) Calculation.
Taxation of Oil and Gas Resources
Discounted Cash Flow (DCF) Calculation
Four (4) variables contribute to the DCF method.
A. Production profile, or production decline curve.
Note in example that 80% is produced < 6 years
Taxation of Oil and Gas Resources
Discounted Cash Flow (DCF) Calculation
2. and 3. Operating expenses and oil/gas prices.
Taxation of Oil and Gas Resources
Discounted Cash Flow (DCF) Calculation
4. Discount Rate (the cost of money).
QUESTIONS?