Thesis (Ph. D.)--University of Wisconsin--Madison, 1985. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 506-521).

Thesis--University of Washington. / Vita. Another copy has number: Thesis 27878. Bibliography: leaves [105]-113.

Thesis (M. Sc.)--University of Hong Kong, 2006.

The future of coal mining in the Witbank Coalfield over the next 30 years and beyond depends on effective and responsible utilization of the remaining reserves, both within unmined and previously mined areas. Similar to all mineral resources, coal is also non-renewable and the current resources will not last forever. Unlike most other resources coal resources have to be considered in long term strategic planning for energy supply. It has therefore become very important to use the remaining resources and reserves to their full potential. This has prompted mining companies to re-mine or do secondary extraction of areas mined during the previous 50 years. Reliable and internationally accepted valuation techniques and reporting standards are well established for virgin areas. The challenge is now to develop an equally robust and reliable system for remaining resources and reserves in previously mined areas. A number of established operations already exist in South Africa and internationally which are utilizing such reserves. Due to numerous factors affecting the viability of this type of operation a system or matrix is proposed for defining such resources and reserves. This classification scheme caters for the obvious geological, mining and beneficiation factors, and also for the multitude of lesser known but equally important factors. The effects of some of these factors on a future mining operation are demonstrated in a case study of such a previously mined area. Factors affecting the Run of Mine (ROM) tons and saleable tons are: a) derating percentage b) percentage mining extraction c) percentage dilution and contamination d) percentage fines generated e) spontaneous combustion Numerous pitfalls are identified such as top coaled areas, water accumulations, no access to old areas to verify existing information and the time lapsed since previous mining occurred. Another complicating factor is the lack of a method for the quantification of the impact of spontaneous combustion on remaining reserves. The financial viability of mining these areas are especially sensitive to the coal price, R/$ exchange rate, change in production and capital expenditure. The information generated during the investigation is processed in a financial model which is used to evaluate different scenarios and risk sensitivities. It is demonstrated that in evaluating previously mined areas, it is not the obvious factors that often determine the financial viability of a project, but rather the not so obvious financial factors. / Dissertation (MSc (Geology))--University of Pretoria, 2008. / Geology / unrestricted

Despite the need for accurate oil and gas reserves estimates which honor disclosure requirements of the United States Securities and Exchange Commission (SEC), a number of exploration and production companies have allegedly overstated and subsequently written down their reserves during the last 20 years. Reserves write-downs are of great interest to numerous groups involved in the reserves estimation process and outcome, including estimators, managers, investors, creditors, and regulators. Considering the magnitude and nature of some alleged overstatement cases, it appears that some of these parties may benefit from a better understanding of reserves reporting, the relative risk of overstatements, the regulatory environment and enforcement procedures, and identifying questionable reserves data. After discussing the context and importance of reserves and write-downs, there is a detailed examination of the SEC, including the agency's reserves reporting requirements, and their enforcement methods. A number of alleged overstatement and write-down "case studies" are presented, with details on the specific Federal Laws alleged to have been violated by corporations or individuals and then cited by the SEC and shareholder lawsuits. We also conclude that there may be greater write-down potential due to the updated SEC reserves reporting guidelines. A comprehensive series of systematic questions have been compiled and quick-look graphical techniques have been developed that may be used to gain insight into -and potentially raise questions about- an operator's reserves data.

Despite the need for accurate oil and gas reserves estimates which honor disclosure requirements of the United States Securities and Exchange Commission (SEC), a number of exploration and production companies have allegedly overstated and subsequently written down their reserves during the last 20 years. Reserves write-downs are of great interest to numerous groups involved in the reserves estimation process and outcome, including estimators, managers, investors, creditors, and regulators. Considering the magnitude and nature of some alleged overstatement cases, it appears that some of these parties may benefit from a better understanding of reserves reporting, the relative risk of overstatements, the regulatory environment and enforcement procedures, and identifying questionable reserves data. After discussing the context and importance of reserves and write-downs, there is a detailed examination of the SEC, including the agency's reserves reporting requirements, and their enforcement methods. A number of alleged overstatement and write-down "case studies" are presented, with details on the specific Federal Laws alleged to have been violated by corporations or individuals and then cited by the SEC and shareholder lawsuits. We also conclude that there may be greater write-down potential due to the updated SEC reserves reporting guidelines. A comprehensive series of systematic questions have been compiled and quick-look graphical techniques have been developed that may be used to gain insight into -and potentially raise questions about- an operator's reserves data.

Thesis (Ph. D.)--University of Florida, 2005. / Title from title page of source document. Document formatted into pages; contains 326 pages. Includes vita. Includes bibliographical references.

Thesis (M. Arch.)--University of Hong Kong, 2002. / Includes bibliographical references.

Thesis (M.S.)--University of Oregon, 2000. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 141-152). Also available for download via the World Wide Web; free to UO users.

This dissertation addresses the causes of and policy responses to the 1990s current account crises. The first chapter explores the relative importance of external shocks as key determinants of the significant increase of foreign reserves accumulated in many emerging market economies, and provides a comprehensive framework to assess the adequacy of reserve holdings. Using the case of Mexico, I find that more than two thirds of the increase in international reserves can be replicated by a linear combination of external shocks, without an abrupt regime shift after the Tequila crisis. I also find that Mexico has historically adopted an appropriate reserves policy, with 1994 being an exception. However, under the current reserves policy, there is a positive probability of a current account crisis in the near future. In chapter Two, I investigate the optimal reserves policy. The analysis predicts an optimal level of reserves in Mexico that is considerably higher than the actual level. When I account for the possibility of a bailout by the outside world in case of a crisis, Mexico's current reserves policy is in the range of my model's predictions. The final chapter proposes a new explanation for the existence and nature of sudden stops. In my model, a sudden stop forms a necessary solution to the moral hazard problem in investment and can be rationalized as part of an optimal lending strategy in the face of asymmetric information. / Thesis (Ph.D, Economics) -- Queen's University, 2009-08-13 22:52:26.219