 |
| Algal
Mound |
A
type of bioherm formed from the buildup of algae deposits.
|
| Bcf |
Billion
cubic feet of natural gas. |
| Bcfe |
Billion
cubic feet of natural gas equivalent. |
| Bbl |
One stock tank barrel, or 42 U.S. gallons liquid volume, used herein
in reference to crude oil or other liquid hydrocarbons. |
| Commingled
Well |
A well producing from two or more formations through common well casing
and a single tubing string. |
| DD&A |
Depreciation, depletion, and amortization. |
| Developed
Acreage |
The
number of acres which are allocated or assignable to producing wells
or wells capable of production. |
| Development
Well |
A well drilled within the proved area of an oil or gas reservoir to
the depth of a stratigraphic horizon known to be productive. |
| Downdip
Wells |
Wells producing from deeper depths lower on a structure than updip
wells. |
| Dry
Hole | Dry Well |
A well found to be incapable of producing either oil or gas in sufficient
quantities to justify completion as an oil or gas well. |
| Exploratory
Well |
A well drilled to find and produce oil or gas in an unproved area,
to find a new reservoir in a field previously found to be productive
of oil or gas in another reservoir, or to extend a known reservoir.
|
| Finding
Costs |
The
capital costs associated with finding and developing oil and gas reserves.
|
| Formation |
An
identifiable single geologic horizon. |
| Fracture
Stimulation |
Action
taken to increase the inherent productivity of a prospective formation
through the hydraulic injection of water, diesel, or CO2 at high pressures
and high rates. |
| Full-cost
Ceiling Test
Writedown |
A non-cash charge to earnings as mandated by the Securities and Exchange
Commission for companies utilizing the full-cost method of accounting.
Under the full-cost method of accounting, all costs of acquisition,
exploration and development of oil and gas reserves are capitalized
into a "full-cost pool" as incurred and properties in the
pool are depleted and charged to operations using the unit-of-production
method based on the ratio of current production to total proved oil
and gas reserves. To the extent that such capitalized costs (net of
accumulated depreciation, depletion, and amortization) less deferred
taxes exceed the present value of estimated future net cash flows
from proved oil and gas reserves and the lower of cost or fair value
of unproved properties after income tax effects, such earnings but
would not have an impact on cash flows from operating activities.
Once incurred, a writedown of oil and gas properties is not reversible
at a later date, even if oil and gas prices subsequently increase.
|
| G&A
|
Expenses
General and administrative expenses.
|
| Gross
Acres or Gross Wells |
The
total acres or wells, as the case may be, in which a working interest
is owned. |
|
Horizontal Wells |
Wells
which are drilled at angles greater than 70 from vertical. |
| Increased
Density |
A
well drilled in addition to the number of wells permitted under normal
spacing regulations to accelerate recovery or prevent loss of reserves.
|
| Independent
Producer |
A nonintegrated producer of oil and gas with no refining or retail
marketing operations. |
|
Lease Operating Expenses |
The costs of maintaining and operating property and equipment on a
producing oil and gas lease.
MBbls One thousand barrels of oil. |
| Mcf |
One thousand cubic feet of natural gas. |
| MMcf |
One
million cubic feet of natural gas. |
| MMcfe |
One
million cubic feet of natural gas equivalent; a unit of measurement
which combines oil, natural gas liquids, and natural gas. Oil and
natural gas liquids are converted to natural gas based upon their
relative energy content at the rate of 6 mcf for each barrel of oil
or natural gas liquids. |
| Operating
Costs |
The
sum of lease operating costs, production taxes, G&A expenses,
and oil and gas depreciation, depletion, and amortization. |
| Net
Acres or Net Wells |
The
sum of the fractional working interest owned in gross acres or gross
wells. |
| Payzone |
The producing formation(s) of a well. |
| Present
Value |
When used with respect to oil and gas reserves, present value is the
estimated future gross revenue to be generated from the production
of proved reserves, net of estimated production and future development
costs, using prices and costs in effect at the determination date,
without giving effect to non-property related expenses such as general
and administrative expenses, debt service and future income tax expense
or to depreciation, depletion and amortization, discounted using an
annual discount rate of 10%. |
| Productive
Well |
A
well that is producing oil or natural gas or that is capable of production.
|
| Proved
Developed Reserves |
Reserves
that can be expected to be recovered through existing wells with existing
equipment and operating methods. |
| Proved
Reserves |
The estimated quantities of crude oil, natural gas and natural gas
liquids which geological and engineering data demonstrate with reasonable
certainty to be recoverable in future years from known reservoirs
under existing economic and operating conditions.
|
| Proved
Undeveloped Location |
A
site on which a development well can be drilled consistent with spacing
rules for purposes of recovering proved undeveloped reserves. |
| Proved
Undeveloped Reserves |
Reserves
that are expected to be recovered from new wells drilled to a known
reservoir(s) on un-drilled acreage or from existing wells where a
relatively major expenditure is required for recompletion. |
| Reserve
Life |
The
term in years required to deplete the company's proved oil and gas
reserve base at current production rates. |
| Royalty
Interest |
An interest in an oil and gas property entitling the owner to a share
of oil or gas production free of costs of production.
|
| 3-D
Seismic |
Advanced
technology method of detecting accumulations of hydrocarbons identified
by the collection and measurement of the intensity and timing of sound
waves transmitted into the earth as they reflect back to the surface.
|
| Tcf |
One
trillion cubic feet of natural gas. |
| Tcfe |
One
trillion cubic feet of natural gas equivalent. |
| Undeveloped
Acreage |
Lease
acreage on which wells have not been drilled or completed to a point
that would permit the production of commercial quantities of oil and
gas regardless of whether such acreage contains proved reserves. |
| Working
Interest |
The
operating interest which gives the owner the right to drill, produce
and conduct operating activities on the property and a share of production.
|
|
| |