UDC 911.6
The study examines the Southern Belt of Oil and Gas Development in Eastern Siberia as a single interregional object of analysis formed by three areas: the Evenki Area, the Angaro–Lensky Area (Irkutsk Oblast), and the Leno–Vilyuy Area (Republic of Sakha (Yakutia)). These three of Eastern Siberia’s five development areas constitute a closely comparable “field” of development; the other two, Arctic areas—Anabar and Yenisei—are not considered here because they exhibit fundamentally different conditions of development (climate, logistics, regulatory regimes). Using a consolidated open-source database, a cartographic-analytical comparison is performed of the licensing portfolio, development stages, and infrastructure connectivity (ESPO, Kuyumba–Taishet, Power of Siberia/Power of Siberia-2), allowing the determination of operator shares by licensed area, recoverable oil and gas reserves, and indicative current production. The analysis shows that common logistics corridors and service bases, together with the geographic proximity of the areas, lower firms’ barriers to expansion and strengthen scale effects and portfolio diversification; under these conditions, a mosaic of small license holders by area coexists with a concentration of reserves and output among operators controlling “anchor” fields (Kovyktinskoye, Chayandinskoye, the Talakan cluster; Yurubcheno-Tokhomskoye and the Kuyumbinskaya group). Accuracy was validated by cross-checks: for one indicator, the upper bound of divergence from verifiable values may reach 50%, while for other positions deviations are substantially smaller—an acceptable level for aggregated metrics compiled from numerous open sources. The focus is on substantive results and their regional interpretation, with the underlying author-compiled database presented and described in other publications.
Eastern Siberia, Southern Belt of Oil and Gas Development, license ownership structure, major fields, infrastructure connectivity, ESPO (Kuyumba–Taishet), Power of Siberia, spatial analysis, indicative estimates, open-source data aggregation
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