Carrizo Oil & Gas, Inc.
2001 Annual Report
 

 

   Productive well. A well that is found to be capable of producing hydrocarbons in sufficient quantities such that proceeds from the sale of such production exceed production expenses and taxes.

   Proved developed nonproducing reserves. Proved developed reserves expected to be recovered from zones behind casing in existing wells.

   Proved developed producing reserves. Proved developed reserves that are expected to be recovered from completion intervals currently open in existing wells and able to produce to market.

   Proved developed reserves. Proved reserves that can be expected to be recovered from existing wells with existing equipment and operating methods.

   Proved reserves. The estimated quantities of crude oil, natural gas and natural gas liquids that 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. Proved reserves that are expected to be recovered from new wells on undrilled acreage or from existing wells where a relatively major expenditure is required for recompletion.

   PV-10 Value. The present value of estimated future revenues to be generated from the production of proved reserves calculated in accordance with Securities and Exchange Commission guidelines, net of estimated production and future development costs, using prices and costs as of the date of estimation without future escalation, without giving effect to non-property related expenses such as general and administrative expenses, debt service, future income tax expense and depreciation, depletion and amortization, and discounted using an annual discount rate of 10 percent.

   Recompletion. The completion for production of an existing well bore in another formation from that in which the well has been previously completed.

   Reservoir. A porous and permeable underground formation containing a natural accumulation of producible oil and/or gas that is confined by impermeable rock or water barriers and is individual and separate from other reservoirs.

   Royalty interest. An interest in an oil and natural gas property entitling the owner to a share of oil or gas production free of costs of production.

   3-D seismic data. Three-dimensional pictures of the subsurface created by collecting and measuring the intensity and timing of sound waves transmitted into the earth as they reflect back to the surface.

   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 natural gas regardless of whether such acreage contains proved reserves.

   Working interest. The operating interest that gives the owner the right to drill, produce and conduct operating activities on the property and a share of production.

   Workover. Operations on a producing well to restore or increase production.

Item 3. Legal Proceedings

   From time to time, the Company is party to certain legal actions and claims arising in the ordinary course of business. While the outcome of these events cannot be predicted with certainty, management does not expect these matters to have a materially adverse effect on the financial position or results of operations of the Company.

   Settlement of Litigation. The Company, as one of three plaintiffs, filed a lawsuit against BNP Petroleum Corporation ("BNP"), Seiskin Interests, LTD, Pagenergy Company, LLC and Gap Marketing Company, LLC, as defendants, in the 229th Judicial District Court of Duval County, Texas, for fraud and breach of contract in connection with an agreement between plaintiffs and defendants whereby the defendants were obligated to drill a test well in an area known as the Slick Prospect in Duval County, Texas. The allegations of the Company in this litigation were that BNP gave the Company inaccurate and incomplete information on which the Company relied in making its decision not to participate in the test well and the prospect, resulting in the loss of the Company's

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