...development of oil and gas. The term 'exploration expenditures' means expenditures paid or incurred for the purpose of ascertaining the existence, location,...beginning of the development stage of the mine or deposit. The term 'development expenditures' means expenditures paid or incurred during the development stage...

...expenditures paid or incurred. In no case shall this subsection apply with respect to amounts paid or incurred for the purpose of ascertaining the existence, location, extent, or quality of any deposit of oil or gas. (2) Election of taxpayer. If the taxpayer elects, in accordance with regulations prescribed...

...Page 1231 §2211 (b) the term "survey of extraction opportunities" means any survey directed (i) to ascertaining the existence, location, extent, or quality of any deposit of ore, oil, gas, or other mineral, or ui' to determining the feasibility of undertaking operations for the...

...expenditures — (a) In general. In the case of expenditures paid or Incurred during the taxable year for the purpose of ascertaining the existence, location,...Income so much of such expenditures as does not exceed «100,000. This section shall apply only with respect to the amount of such expenditures which, but...

...expenditure» — (a) In general. In the сам of expenditures paid or Incurred during the taxable year for the purpose of ascertaining the existence, location,...computing taxable Income so much of such expenditures ал does not exceed $100,000. This section snail apply only with respect to the amount oí such expenditures...

...611 (without regard to section 613) For expenditures paid or incurred before the development stage for the purpose of ascertaining the existence, location,...or quality of any deposit of ore or other mineral deposit (other than an oil, gas or geothermal well) located outside the United States, election to...

...expenditures. (d) Exploration expenditures. This section shall not apply to any expenditure paid or incurred for the purpose of ascertaining the existence, location,...or quality of any deposit of ore or other mineral (including oil and gas). (e) Cross reference. For adjustments to basis of property for amounts allowed...

...General rule. At the election of the taxpayer, expenditures paid or incurred during the taxable year for the purpose of ascertaining the existence, location,...or quality of any deposit of ore or other mineral in the United States or on the Outer Continental Shelf (within the meaning of sec. 2 of the Outer Continental...

...expenditures — (a) In general. In the case of expenditures paid or Incurred during the taxable year for the purpose of ascertaining the existence, location,...extent, or quality of any deposit of ore or other rainerai, and paid or Incurred before the beginning of the development stage of the mine or deposit,...

...expenditures. The provisions of section 174 are not applicable to any expenditures paid or incurred for the purpose of ascertaining the existence, location, extent, or quality of any deposit of ore, oil, gas or other mineral. See sections 615 and 263. § 1.174—3 Treatment as expenses. (a) In general....