The book "Basics of mathematical and computer modeling in the problems of the oil and gas complex", created by the team of authors, is a unique work that immerses the reader in the world of complex and fascinating processes related to the oil and gas industry. This publication will become an indispensable assistant for students, graduate students and specialists working in the field of oil and gas business, as well as for everyone who is interested in modern methods of mathematical modeling and their application in real problems. The book discusses in detail the basic principles and methods of mathematical modeling, which are used to solve actual problems of the oil and gas complex. The reader will get acquainted with different approaches to modeling processes, such as hydrocarbon production, processing and transportation . The authors emphasize the importance of computer modeling as a tool that allows not only to optimize processes, but also to predict the results of various scenarios, which is especially important in conditions of constant changes in the market situation and technological requirements. One of the key topics of the book is the integration of mathematical methods with computer technology. The authors emphasize that modern modeling is impossible without the use of powerful computing resources and software. The reader will be able to learn about various software products and algorithms that are used to solve specific problems, as well as how to correctly interpret the results. This makes the book especially valuable for those who want not only to theoretically master the material, but also to put it into practice. The book will be of interest not only to specialists in the field of oil and gas, but also to students of technical and natural science specialties, as well as to anyone who seeks to expand their knowledge in the field of mathematical modeling. It is suitable for both beginners and experienced readers who want to deepen their knowledge and skills. If you study topics such as the oil and gas economy, hydrocarbon production and processing processes, or are interested in modern modeling methods, this publication will be a real find for you. The style of the authors is distinguished by clarity and accessibility of the presentation, which makes it easy to perceive even the most complex concepts. The book is saturated with examples from real practice, which makes the material more clear and understandable. In addition, it presents current research and development, which allows readers to be aware of the latest trends in the field of oil and gas modeling .. The book "Fundamentals of mathematical and computer modeling in the problems of the oil and gas complex" not only enriches the readers' knowledge, but also inspires further research and practical application of the acquired knowledge. It will be an important step towards professional growth for everyone who wants to become an expert in the field of oil and gas business and mathematical modeling. If you are looking for literature that will help you understand the complex issues of the oil and gas complex, or want to learn how modern technologies can change this industry, then this publication must be in your library. It will help you not only to master the basic principles of modeling, but also to learn how to apply them in practice, which is an invaluable advantage in the rapidly changing world of the oil and gas industry.