{"version":"1.0.0","snapshot":{"snapshotSha256":"7d6e677299352a7b989393edc6a851c0822df0e5f2355d2bd0f6d0b3c86192df","schemaVersion":4,"classificationVersion":"wellficent-source-purpose-v2","classificationSha256":"83e4157601b4d73cb883d6e8578f9fe1ea467bb929d96a74071d77068ee8ca48","shardCount":4},"filters":{"spudFrom":"1964","spudTo":"1964"},"records":136,"sourceWellFamilies":136,"additionalFamilyRows":0,"purposeClassification":{"classified":117,"unclassified":19,"ruleVersion":"wellficent-source-purpose-v2","ruleSha256":"83e4157601b4d73cb883d6e8578f9fe1ea467bb929d96a74071d77068ee8ca48","kind":"derived-from-source-purpose","independentOutcomeLabel":false},"fields":{"operator":{"present":110,"missing":26,"missingFraction":0.19117647058823528},"sourceStatus":{"present":117,"missing":19,"missingFraction":0.13970588235294118},"spudDate":{"present":136,"missing":0,"missingFraction":0},"measuredDepthM":{"present":116,"missing":20,"missingFraction":0.14705882352941177}},"catalogues":[{"catalogue":"israel-petroleum-2020","records":19,"sourceWellFamilies":19,"unclassifiedPurpose":19,"fields":{"operator":{"present":19,"missing":0,"missingFraction":0},"sourceStatus":{"present":0,"missing":19,"missingFraction":1},"spudDate":{"present":19,"missing":0,"missingFraction":0},"measuredDepthM":{"present":0,"missing":19,"missingFraction":1}},"sourceAsOf":"2020-07-06","checkedAt":"2026-10-02","commercialUseAllowed":null,"catalogueCard":"https://wellficent.com/api/v1/wells/catalogues/israel-petroleum-2020"},{"catalogue":"netherlands-nlog","records":77,"sourceWellFamilies":77,"unclassifiedPurpose":0,"fields":{"operator":{"present":77,"missing":0,"missingFraction":0},"sourceStatus":{"present":77,"missing":0,"missingFraction":0},"spudDate":{"present":77,"missing":0,"missingFraction":0},"measuredDepthM":{"present":77,"missing":0,"missingFraction":0}},"sourceAsOf":null,"checkedAt":"2026-10-02","commercialUseAllowed":null,"catalogueCard":"https://wellficent.com/api/v1/wells/catalogues/netherlands-nlog"},{"catalogue":"new-zealand-nzpam","records":13,"sourceWellFamilies":13,"unclassifiedPurpose":0,"fields":{"operator":{"present":13,"missing":0,"missingFraction":0},"sourceStatus":{"present":13,"missing":0,"missingFraction":0},"spudDate":{"present":13,"missing":0,"missingFraction":0},"measuredDepthM":{"present":12,"missing":1,"missingFraction":0.07692307692307693}},"sourceAsOf":null,"checkedAt":"2026-10-02","commercialUseAllowed":null,"catalogueCard":"https://wellficent.com/api/v1/wells/catalogues/new-zealand-nzpam"},{"catalogue":"uk-nsta-offshore","records":1,"sourceWellFamilies":1,"unclassifiedPurpose":0,"fields":{"operator":{"present":1,"missing":0,"missingFraction":0},"sourceStatus":{"present":1,"missing":0,"missingFraction":0},"spudDate":{"present":1,"missing":0,"missingFraction":0},"measuredDepthM":{"present":1,"missing":0,"missingFraction":0}},"sourceAsOf":null,"checkedAt":"2026-10-02","commercialUseAllowed":null,"catalogueCard":"https://wellficent.com/api/v1/wells/catalogues/uk-nsta-offshore"},{"catalogue":"uk-nsta-onshore","records":26,"sourceWellFamilies":26,"unclassifiedPurpose":0,"fields":{"operator":{"present":0,"missing":26,"missingFraction":1},"sourceStatus":{"present":26,"missing":0,"missingFraction":0},"spudDate":{"present":26,"missing":0,"missingFraction":0},"measuredDepthM":{"present":26,"missing":0,"missingFraction":0}},"sourceAsOf":null,"checkedAt":"2026-10-02","commercialUseAllowed":false,"catalogueCard":"https://wellficent.com/api/v1/wells/catalogues/uk-nsta-onshore"}],"rowQuality":{"ruleVersion":"wellficent-row-quality-v1","checks":["completion-before-spud","measured-depth-reference-unreported"],"scope":"Per-row source consistency checks retain original facts. Empty flags are not a guarantee of correctness."},"semantics":["Nulls are not imputed.","Additional family rows include sidetracks and boreholes, not established physical duplicates.","Completeness does not prove source accuracy, predictive performance or current operations."],"sortContract":{"default":"name","tieBreaker":"id ascending","nulls":"last for nullable sort fields","textCollation":"SQLite NOCASE (ASCII case folding)","available":["name","spud","spud-oldest","depth","operator","status","source-id"]}}