Know your data sources.

Polish Geological Institute (PGI-PIB) Central Geological Database (CBDG) public ArcGIS REST services covering Poland's upstream oil, gas, and coalbed-methane sector. Search hydrocarbon exploration and production concessions (operator/capital group, mineral, concession type, decision date), coal and coal-mine-methane concessions, 2D and 3D seismic survey footprints (contractor, owner, year), hydrocarbon surface seeps, and Upper Silesian Coal Basin boreholes (depth, stratigraphy). Competitive intelligence on operators such as Orlen S.A., seismic-coverage screening, and CBM/coal-mine-methane prospecting. Toggle on and use - no setup needed.

Virginia Department of Energy (ex-DMME) — coalbed methane / oil & gas wells, 54.6K SWVA drilling grids, and statewide mineral mining permits. - searchOilGasWells ⭐ active (8.6K) | permittedUndrilled (208) | plugged (1.97K) via wellLayer - searchHorizontalGrids ⭐ 54.6K SWVA 20-acre drilling grid polygons - searchMineralMines ⭐ active (450) | released (1.78K). Filter mineralType (OP/QU/UG) - getWellByFiNo (cross-layer lookup), getServiceInfo §0 caught: Legacy dmme.virginia.gov DEAD — public surface is energy.virginia.gov. Geothermal/8 (NGDS, 1.3K) duplicate of DGO_wells — DROPPED. 73% CBM (Coalbed/Pipeline + Coal Bed). Counties UPPERCASE (BUCHANAN/DICKENSON/WISE 88%). Native CRS EPSG:6591; outSR=4326 reprojects.

Wyoming WDEQ — voluntary remediation + mining permits + solid waste + AML. - searchVoluntaryRemediation (~287 VRP/ICP/Brownfields) ⭐ - searchMinePermits (~265 LQD active) ⭐ - searchSolidWaste (~312 landfills/dumps), searchAMLPads (~284), getServiceInfo Spec drift: searchAirPermits + searchUSTSites + searchSpills DROPPED — no public Feature Services. WDEQ native servers (gis.deq.wyoming.gov, 020-arcgis02.wyores.local) are internal-only. Replacements: searchSolidWaste + searchMinePermits + searchAMLPads (drawn from WDEQ AGOL mirrors). upstream quirks: VRP INDUSTRY field has free-text variants (Energy/Energy-T&S/Energy-E&P/Refinery/Military/Commercial). Mine permits COUNTY is UPPERCASE. Solid Waste COUNTY is Title Case. Date columns are mix of strings and epoch-ms.

Wyoming WOGCC. Powder River + Niobrara + Greater Green River — CBM legacy + modern shale. - searchWells (~68.7K) ⭐ filter county/operator/status/wellClass/twp/rge/horizontalOnly - searchPermits ⭐ STATUS in (AP, NI) on Wells layer (no separate APD service) - getWellByApi, searchHorizontalLegs (~28K BH vectors), searchPluggedAndAbandoned (~61K), getServiceInfo Spec drift: gis.wogcc.wyo.gov DNS dead. WOGCC pits + APDs not Feature Services. Replacements: searchPluggedAndAbandoned + STATUS-coded permit filtering. upstream quirks: COUNTY integer FIPS (5=Campbell 18.3K wells). STATUS 2-letter (PR/PA/SI/TA/AI/FL). maxRecordCount=1000. BH layer = horizontal lateral polylines.