diff --git a/web-v2/src/pages/TerritorialInventoryPage.tsx b/web-v2/src/pages/TerritorialInventoryPage.tsx
index 7700a70..22c353e 100644
--- a/web-v2/src/pages/TerritorialInventoryPage.tsx
+++ b/web-v2/src/pages/TerritorialInventoryPage.tsx
@@ -2,17 +2,19 @@ import { useEffect, useMemo, useState } from 'react';
 import type { FormEvent } from 'react';
 import { Link, useSearchParams } from 'react-router';
 import { useAuth } from '../auth/AuthContext';
+import { hasAdministratorRole } from '../auth/adminAccess';
 import { Alert, LoadingBlock, errorMessage } from '../components/Feedback';
 import { Icon } from '../components/Icon';
 import { AssetHistoryPanel } from '../features/assets/AssetHistoryPanel';
 import { assetStatusClass, assetStatusLabel } from '../features/assets/assetPresentation';
 import {
+  getAssetLineage,
   listAreaCompanyRelations,
   listAssetTreeChildren,
   listInspectionVisits,
   updateAsset,
 } from '../lib/api';
-import type { AreaCompanyRelation, AssetDetail, AssetListItem } from '../lib/api';
+import type { AreaCompanyRelation, AssetDetail, AssetLineageItem, AssetListItem } from '../lib/api';
 import {
   listInspectionActsGlobalF4,
   type InspectionActStatusF4,
@@ -31,8 +33,12 @@ function normalized(value: string) {
     .trim();
 }
 
+function tokensForType(type: { code: string; name: string }) {
+  return new Set(`${normalized(type.code)} ${normalized(type.name)}`.split(' ').filter(Boolean));
+}
+
 function typeTokens(asset: AssetDetail) {
-  return new Set(`${normalized(asset.type.code)} ${normalized(asset.type.name)}`.split(' ').filter(Boolean));
+  return tokensForType(asset.type);
 }
 
 export function isTerritorialInventoryAsset(asset: AssetDetail) {
@@ -44,6 +50,14 @@ function isOperationalArea(asset: AssetDetail) {
   return typeTokens(asset).has('area');
 }
 
+function isYacimiento(asset: AssetDetail) {
+  return typeTokens(asset).has('yacimiento');
+}
+
+function lineageArea(lineage: AssetLineageItem[]) {
+  return [...lineage].reverse().find((item) => tokensForType(item.type).has('area')) ?? null;
+}
+
 function relationRoleLabel(role: AreaCompanyRelation['relationRole']) {
   if (role === 'OPERATOR') return 'Operadora';
   if (role === 'TECHNICAL_OPERATOR') return 'Operadora técnica';
@@ -57,7 +71,7 @@ export function TerritorialInventoryPage({ initialAsset }: { initialAsset: Asset
   const [params, setParams] = useSearchParams();
   const requestedTab = params.get('tab') as TerritoryTab | null;
   const tab: TerritoryTab = requestedTab === 'history' ? 'history' : 'summary';
-  const { hasPermission } = useAuth();
+  const { user, hasPermission } = useAuth();
   const canEdit = hasPermission('assets.update');
   const canCreate = hasPermission('assets.create');
   const canReadHistory = hasPermission('assets.read_history');
@@ -65,10 +79,12 @@ export function TerritorialInventoryPage({ initialAsset }: { initialAsset: Asset
   const canReadActs = hasPermission('inspection_acts.read');
   const canReadReports = hasPermission('inspection_reports.read');
   const canReadInspections = hasPermission('inspections.read');
+  const canAdvanced = hasAdministratorRole(user);
 
   const [asset, setAsset] = useState(initialAsset);
   const [children, setChildren] = useState<AssetListItem[]>([]);
   const [childrenHasMore, setChildrenHasMore] = useState(false);
+  const [lineage, setLineage] = useState<AssetLineageItem[]>([]);
   const [relations, setRelations] = useState<AreaCompanyRelation[]>([]);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState('');
@@ -80,18 +96,31 @@ export function TerritorialInventoryPage({ initialAsset }: { initialAsset: Asset
   const [metrics, setMetrics] = useState({ activeInspections: 0, acts: 0, reports: 0 });
 
   const area = isOperationalArea(asset);
+  const yacimiento = isYacimiento(asset);
   const activeRelations = useMemo(() => relations.filter((item) => item.active), [relations]);
+  const relationAreaContext = useMemo(() => {
+    if (area) return { id: asset.id, code: asset.code, name: asset.name };
+    if (asset.operationalArea) return asset.operationalArea;
+    const ancestor = lineageArea(lineage);
+    return ancestor ? { id: ancestor.id, code: ancestor.code, name: ancestor.name } : null;
+  }, [area, asset.id, asset.code, asset.name, asset.operationalArea, lineage]);
 
   const loadSummary = async () => {
     setLoading(true);
     setError('');
     try {
+      const loadedLineage = await getAssetLineage(asset.id);
+      const ancestorArea = lineageArea(loadedLineage);
+      const relationAreaId = area
+        ? asset.id
+        : asset.operationalArea?.id ?? ancestorArea?.id ?? null;
       const [childPage, loadedRelations] = await Promise.all([
         listAssetTreeChildren({ parentId: asset.id, limit: 100 }),
-        area && canReadRelations
-          ? listAreaCompanyRelations({ areaId: asset.id, includeHistory: true })
+        relationAreaId && canReadRelations
+          ? listAreaCompanyRelations({ areaId: relationAreaId, includeHistory: true })
           : Promise.resolve([]),
       ]);
+      setLineage(loadedLineage);
       setChildren(childPage.data);
       setChildrenHasMore(childPage.meta.hasMore);
       setRelations(loadedRelations);
@@ -223,10 +252,10 @@ export function TerritorialInventoryPage({ initialAsset }: { initialAsset: Asset
         {childrenHasMore && <div className="territory-card-actions"><Link className="button secondary" to={`/inventarios?section=territory&parentId=${asset.id}`}>Ver contenido completo</Link></div>}
       </article>
 
-      {area && canReadRelations && <article className="panel territory-card">
-        <div className="territory-card-heading"><div><span className="eyebrow">OPERACIÓN</span><h2>Empresas vinculadas</h2><p>Quién opera o participa actualmente en esta área.</p></div><span className="count-pill">{activeRelations.length}</span></div>
-        {loading ? <LoadingBlock label="Cargando empresas…" /> : activeRelations.length === 0 ? <div className="inline-empty">No hay empresas con vínculo vigente.</div> : <div className="territory-company-list">
-          {activeRelations.map((relation) => <Link to={`/inventarios/${relation.company.id}`} key={relation.id} className="territory-company-row"><span><strong>{relation.company.name}</strong><small>{relationRoleLabel(relation.relationRole)}</small></span><Icon name="chevron" size={16} /></Link>)}
+      {relationAreaContext && canReadRelations && <article className="panel territory-card">
+        <div className="territory-card-heading"><div><span className="eyebrow">OPERACIÓN</span><h2>Empresas vinculadas</h2><p>{area ? 'Quién opera o participa actualmente en esta área.' : yacimiento ? `Empresas que operan o participan en el Área ${relationAreaContext.name}, contexto operativo de este yacimiento.` : `Empresas vinculadas al Área ${relationAreaContext.name}.`}</p></div><span className="count-pill">{activeRelations.length}</span></div>
+        {loading ? <LoadingBlock label="Cargando empresas…" /> : activeRelations.length === 0 ? <div className="inline-empty">No hay empresas con vínculo vigente en el Área {relationAreaContext.name}.</div> : <div className="territory-company-list">
+          {activeRelations.map((relation) => <Link to={`/inventarios/${relation.company.id}`} key={relation.id} className="territory-company-row"><span><strong>{relation.company.name}</strong><small>{relationRoleLabel(relation.relationRole)}{!area ? ` · ${relation.area.name}` : ''}</small></span><Icon name="chevron" size={16} /></Link>)}
         </div>}
       </article>}
 
@@ -239,7 +268,7 @@ export function TerritorialInventoryPage({ initialAsset }: { initialAsset: Asset
         </div>
       </article>}
 
-      <div className="territory-advanced-link"><span>Los datos estructurales, procedencia, ubicación y opciones técnicas quedan fuera de la vista cotidiana.</span><Link to={`/inventarios/${asset.id}?advanced=1`}>Administración avanzada</Link></div>
+      {canAdvanced && <div className="territory-advanced-link"><span>Los datos estructurales, procedencia, ubicación y opciones técnicas quedan fuera de la vista cotidiana.</span><Link to={`/inventarios/${asset.id}?advanced=1`}>Administración avanzada</Link></div>}
     </div>}
 
     {tab === 'history' && canReadHistory && <AssetHistoryPanel assetId={asset.id} />}