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← Keiyo Gas

Half-year report · HY

9539.TEDINET S100YVZ5
Period2026-01-01 → 2026-06-30
Filed2026-08-13
StandardJapan GAAP
ConsolidatedYes
Data checks14 of 14 passed
Key figures · 44
MetricValuePeriodScopeSource row
Revenue¥64.4bn2026-01-01 → 2026-06-30Cons.Net sales
Revenue¥117.7bn2025-01-01 → 2025-12-31Cons.Net sales (5-year summary)
Revenue¥65.3bn2025-01-01 → 2025-06-30Cons.Net sales
Operating income¥5.4bn2026-01-01 → 2026-06-30Cons.Operating income
Operating income¥4.7bn2025-01-01 → 2025-06-30Cons.Operating income
Ordinary income¥6.3bn2026-01-01 → 2026-06-30Cons.Ordinary income
Ordinary income¥4.6bn2025-01-01 → 2025-12-31Cons.Ordinary income loss (5-year summary)
Ordinary income¥5.0bn2025-01-01 → 2025-06-30Cons.Ordinary income
Profit before tax¥6.4bn2026-01-01 → 2026-06-30Cons.Income before income taxes
Profit before tax¥5.0bn2025-01-01 → 2025-06-30Cons.Income before income taxes
Net income (owners)¥4.5bn2026-01-01 → 2026-06-30Cons.Profit loss attributable to owners of parent
Net income (owners)¥3.2bn2025-01-01 → 2025-12-31Cons.Profit loss attributable to owners of parent (5-year summary)
Net income (owners)¥3.6bn2025-01-01 → 2025-06-30Cons.Profit loss attributable to owners of parent
Net income¥4.6bn2026-01-01 → 2026-06-30Cons.Profit loss
Net income¥3.8bn2025-01-01 → 2025-06-30Cons.Profit loss
Total assets¥182.4bnat 2026-06-30Cons.Assets
Total assets¥178.1bnat 2025-12-31Cons.Assets
Total assets¥161.0bnat 2025-06-30Cons.Total assets (5-year summary)
Total liabilities¥72.6bnat 2026-06-30Cons.Liabilities
Total liabilities¥73.5bnat 2025-12-31Cons.Liabilities
Net assets / equity¥109.8bnat 2026-06-30Cons.Net assets
Net assets / equity¥104.5bnat 2025-12-31Cons.Net assets
Net assets / equity¥99.2bnat 2025-06-30Cons.Net assets (5-year summary)
Cash and deposits¥25.9bnat 2026-06-30Cons.Cash and deposits
Cash and deposits¥22.0bnat 2025-12-31Cons.Cash and deposits
Cash & equivalents¥19.6bnat 2026-06-30Cons.Cash and cash equivalents
Cash & equivalents¥16.4bnat 2025-12-31Cons.Cash and cash equivalents
Cash & equivalents¥12.9bnat 2025-06-30Cons.Cash and cash equivalents
Cash & equivalents¥13.5bnat 2024-12-31vCons.Cash and cash equivalents
Operating cash flow¥10.3bn2026-01-01 → 2026-06-30Cons.Net cash provided by used in operating activities
Operating cash flow¥13.7bn2025-01-01 → 2025-12-31Cons.Net cash provided by used in operating activities (5-year summary)
Operating cash flow¥9.3bn2025-01-01 → 2025-06-30Cons.Net cash provided by used in operating activities
Investing cash flow−¥7.2bn2026-01-01 → 2026-06-30Cons.Net cash provided by used in investment activities
Investing cash flow−¥13.1bn2025-01-01 → 2025-12-31Cons.Net cash provided by used in investing activities (5-year summary)
Investing cash flow−¥7.7bn2025-01-01 → 2025-06-30Cons.Net cash provided by used in investment activities
Financing cash flow¥85m2026-01-01 → 2026-06-30Cons.Net cash provided by used in financing activities
Financing cash flow¥2.3bn2025-01-01 → 2025-12-31Cons.Net cash provided by used in financing activities (5-year summary)
Financing cash flow−¥2.2bn2025-01-01 → 2025-06-30Cons.Net cash provided by used in financing activities
EPS (basic)¥140.112026-01-01 → 2026-06-30Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥99.852025-01-01 → 2025-12-31Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥112.682025-01-01 → 2025-06-30Cons.Basic earnings loss per share (5-year summary)
Equity ratio58.2%at 2026-06-30Cons.Equity to asset ratio (5-year summary)
Equity ratio56.8%at 2025-12-31Cons.Equity to asset ratio (5-year summary)
Equity ratio59.5%at 2025-06-30Cons.Equity to asset ratio (5-year summary)

Periods use the dates stated in the filing. d = earlier-year period dated by calendar; v = that date confirmed by the company's own earlier filing.

Segments · 34
SegmentItemPeriodValue
Reconciling Itemsreconcilingrevenue2026-01-01 → 2026-06-30−¥133m
Reconciling Itemsreconcilingrevenue intersegment2026-01-01 → 2026-06-30−¥133m
Reconciling Itemsreconcilingsegment profit2026-01-01 → 2026-06-30−¥1.7bn
Energyreportable segmentrevenue2026-01-01 → 2026-06-30¥59.0bn
Energyreportable segmentrevenue external2026-01-01 → 2026-06-30¥59.0bn
Energyreportable segmentsegment profit2026-01-01 → 2026-06-30¥5.8bn
Life Servicereportable segmentrevenue2026-01-01 → 2026-06-30¥4.3bn
Life Servicereportable segmentrevenue external2026-01-01 → 2026-06-30¥4.3bn
Life Servicereportable segmentsegment profit2026-01-01 → 2026-06-30¥629m
Real Estatereportable segmentrevenue2026-01-01 → 2026-06-30¥1.3bn
Real Estatereportable segmentrevenue external2026-01-01 → 2026-06-30¥1.1bn
Real Estatereportable segmentrevenue intersegment2026-01-01 → 2026-06-30¥133m
Real Estatereportable segmentsegment profit2026-01-01 → 2026-06-30¥618m
Total Of Reportable Segments And Otherssegment totalrevenue2026-01-01 → 2026-06-30¥64.6bn
Total Of Reportable Segments And Otherssegment totalrevenue external2026-01-01 → 2026-06-30¥64.4bn
Total Of Reportable Segments And Otherssegment totalrevenue intersegment2026-01-01 → 2026-06-30¥133m
Total Of Reportable Segments And Otherssegment totalsegment profit2026-01-01 → 2026-06-30¥7.0bn
Reconciling Itemsreconcilingrevenue2025-01-01 → 2025-06-30−¥133m
Reconciling Itemsreconcilingrevenue intersegment2025-01-01 → 2025-06-30−¥133m
Reconciling Itemsreconcilingsegment profit2025-01-01 → 2025-06-30−¥1.8bn
Energyreportable segmentrevenue2025-01-01 → 2025-06-30¥61.3bn
Energyreportable segmentrevenue external2025-01-01 → 2025-06-30¥61.3bn
Energyreportable segmentsegment profit2025-01-01 → 2025-06-30¥5.9bn
Life Servicereportable segmentrevenue2025-01-01 → 2025-06-30¥3.1bn
Life Servicereportable segmentrevenue external2025-01-01 → 2025-06-30¥3.1bn
Life Servicereportable segmentsegment profit2025-01-01 → 2025-06-30¥279m
Real Estatereportable segmentrevenue2025-01-01 → 2025-06-30¥1.0bn
Real Estatereportable segmentrevenue external2025-01-01 → 2025-06-30¥883m
Real Estatereportable segmentrevenue intersegment2025-01-01 → 2025-06-30¥133m
Real Estatereportable segmentsegment profit2025-01-01 → 2025-06-30¥342m
Total Of Reportable Segments And Otherssegment totalrevenue2025-01-01 → 2025-06-30¥65.5bn
Total Of Reportable Segments And Otherssegment totalrevenue external2025-01-01 → 2025-06-30¥65.3bn
Total Of Reportable Segments And Otherssegment totalrevenue intersegment2025-01-01 → 2025-06-30¥133m
Total Of Reportable Segments And Otherssegment totalsegment profit2025-01-01 → 2025-06-30¥6.5bn

Segment names come from EDINET member IDs; not yet mapped to a common taxonomy.

All source rows · 488
ItemContextValueUnit
Operating incomePrior1InterimDuration_jpcrp040300-ssr_E04515-000EnergyReportableSegmentMember5864000000JPY
Operating incomePrior1InterimDuration_jpcrp040300-ssr_E04515-000LifeServiceReportableSegmentMember279000000JPY
Operating incomePrior1InterimDuration_jpcrp040300-ssr_E04515-000RealEstateReportableSegmentMember342000000JPY
Operating incomePrior1InterimDuration_TotalOfReportableSegmentsAndOthersMember6486000000JPY
Operating incomePrior1InterimDuration_ReconcilingItemsMember-1778000000JPY
Operating incomePrior1InterimDuration4707000000JPY
Revenues from external customersInterimDuration_jpcrp040300-ssr_E04515-000EnergyReportableSegmentMember59009000000JPY
Revenues from external customersInterimDuration_jpcrp040300-ssr_E04515-000LifeServiceReportableSegmentMember4305000000JPY
Revenues from external customersInterimDuration_jpcrp040300-ssr_E04515-000RealEstateReportableSegmentMember1132000000JPY
Revenues from external customersInterimDuration_TotalOfReportableSegmentsAndOthersMember64446000000JPY
Revenues from external customersInterimDuration_ReconcilingItemsMember－JPY
Revenues from external customersInterimDuration64446000000JPY
Transactions with other segmentsInterimDuration_jpcrp040300-ssr_E04515-000EnergyReportableSegmentMember－JPY
Transactions with other segmentsInterimDuration_jpcrp040300-ssr_E04515-000LifeServiceReportableSegmentMember－JPY
Transactions with other segmentsInterimDuration_jpcrp040300-ssr_E04515-000RealEstateReportableSegmentMember133000000JPY
Transactions with other segmentsInterimDuration_TotalOfReportableSegmentsAndOthersMember133000000JPY
Transactions with other segmentsInterimDuration_ReconcilingItemsMember-133000000JPY
Transactions with other segmentsInterimDuration－JPY
Net salesInterimDuration_jpcrp040300-ssr_E04515-000EnergyReportableSegmentMember59009000000JPY
Net salesInterimDuration_jpcrp040300-ssr_E04515-000LifeServiceReportableSegmentMember4305000000JPY
Net salesInterimDuration_jpcrp040300-ssr_E04515-000RealEstateReportableSegmentMember1265000000JPY
Net salesInterimDuration_TotalOfReportableSegmentsAndOthersMember64580000000JPY
Net salesInterimDuration_ReconcilingItemsMember-133000000JPY
Net salesInterimDuration64446000000JPY
Operating incomeInterimDuration_jpcrp040300-ssr_E04515-000EnergyReportableSegmentMember5802000000JPY
Operating incomeInterimDuration_jpcrp040300-ssr_E04515-000LifeServiceReportableSegmentMember629000000JPY
Operating incomeInterimDuration_jpcrp040300-ssr_E04515-000RealEstateReportableSegmentMember618000000JPY
Operating incomeInterimDuration_TotalOfReportableSegmentsAndOthersMember7050000000JPY
Operating incomeInterimDuration_ReconcilingItemsMember-1679000000JPY
Operating incomeInterimDuration5371000000JPY
Document title cover pageFilingDateInstant
Original text (Japanese)半期報告書
Clause of stipulation cover pageFilingDateInstant
Original text (Japanese)金融商品取引法第24条の５第１項の表の第１号
Place of filing cover pageFilingDateInstant
Original text (Japanese)関東財務局長
Filing date cover pageFilingDateInstant2026-08-13
Semi annual accounting period cover pageFilingDateInstant
Original text (Japanese)第142期中(自　2026年１月１日　至　2026年６月30日)
Company name cover pageFilingDateInstant
Original text (Japanese)京葉瓦斯株式会社
Company name in english cover pageFilingDateInstantKEIYO GAS CO., LTD.
Title and name of representative cover pageFilingDateInstant
Original text (Japanese)代表取締役社長　　江　口　 　孝
Address of registered headquarter cover pageFilingDateInstant
Original text (Japanese)千葉県市川市市川南二丁目８番８号
Telephone number address of registered headquarter cover pageFilingDateInstant047―361―0211
Name of contact person address of registered headquarter cover pageFilingDateInstant
Original text (Japanese)経理部決算グループマネージャー 清　宮　庸一郎
Nearest place of contact cover pageFilingDateInstant
Original text (Japanese)千葉県市川市市川南二丁目８番８号
Telephone number nearest place of contact cover pageFilingDateInstant047―361―0211
Name of contact person nearest place of contact cover pageFilingDateInstant
Original text (Japanese)経理部決算グループマネージャー 清　宮　庸一郎
Place for public inspection cover page (text)FilingDateInstantText · Plus
Edinet codeFilingDateInstantE04515
Fund codeFilingDateInstant－
Security codeFilingDateInstant95390
Filer name in japaneseFilingDateInstant
Original text (Japanese)京葉瓦斯株式会社
Filer name in englishFilingDateInstantKEIYO GAS CO., LTD.

Every row of the EDINET CSV. Item names are the XBRL element names; filed text is kept in its original Japanese. Filed text is available on Plus and Pro.

Data checks · 14 of 14 passed
balance sheet identityconsolidated 2025-12-31pass rounding
balance sheet identityconsolidated 2026-06-30pass
dei present pass
period resolution pass
statement vs summary · net assetsconsolidated 2025-12-31pass
statement vs summary · net assetsconsolidated 2026-06-30pass
statement vs summary · net income attributable to parentconsolidated 2025-01-01/2025-06-30pass
statement vs summary · net income attributable to parentconsolidated 2026-01-01/2026-06-30pass
statement vs summary · operating cash flowconsolidated 2025-01-01/2025-06-30pass
statement vs summary · operating cash flowconsolidated 2026-01-01/2026-06-30pass
statement vs summary · revenueconsolidated 2025-01-01/2025-06-30pass
statement vs summary · revenueconsolidated 2026-01-01/2026-06-30pass
statement vs summary · total assetsconsolidated 2025-12-31pass
statement vs summary · total assetsconsolidated 2026-06-30pass