Osaka Gas

Company history

Financial history 1971–2026 — revenue, cost structure, balance sheet, cash flow and key ratios, year by year →

Founded
1897
Head office
Osaka, Japan
Listed
1949
Founder
Kataoka Naoteru
Revenue · FYE Mar 2026
$12.8B (¥2.03tn)
Net profit · FYE Mar 2026
$966.1M (¥153bn)
Osaka Gas: long-term performance & turning pointsSales (revenue) and profit-margin ratio
Sales (¥ bn)Net margin (%)

1897One region, one supplier

Revenue (¥ bn, bars) · net margin (%, line)
Source: securities reports
  1. 1897Incorporated in Osaka with capital of ¥350,000
  2. 1905Gas supply begins in the city of Osaka
  3. 1945Fourteen gas companies merged in; supply area becomes the six Kinki prefectures
  4. 1949Osaka Gas Chemicals founded
  5. 1965Osaka Gas Urban Development founded

Osaka Gas was incorporated in April 1897 with capital of ¥350,000 and began supplying the city of Osaka in October 1905, in the era of coal gas, gas lamps and gas cookers. City gas is heavy business by nature: the feedstock has to be shipped and stored, the works and the mains have to be kept running, and the supplier ends up responsible for the appliances inside each customer's home. As Osaka urbanised, the company pushed its supply area out from the city into the surrounding districts, and by the time its head office building was completed in 1933 it was one of the region's defining public utilities.

The decisive event was not commercial but administrative. In October 1945 wartime consolidation folded fourteen gas companies — Kobe Gas and Kyoto Gas among them — into Osaka Gas, and the supply area widened from Osaka to the six prefectures of the Kinki region. Japan's city-gas industry settled into a duopoly of geography: Tokyo Gas in the capital region, Osaka Gas in Kansai. Because a plant-heavy network is used most efficiently when one operator holds an entire territory, the arrangement was economically self-justifying, and it would stand almost unchanged for some eighty years.

Around the core business the company began placing small bets that did not depend on gas volumes: Osaka Gas Chemicals in 1949, built on the by-products of coke making, and Osaka Gas Urban Development in 1965. A materials arm selling to industry and a property arm selling to households — the diversification pattern the group still runs on was already sketched out.

Read the full history in Japanese →


1970Brunei LNG and fifteen years of conversion

Revenue (¥ bn, bars) · net margin (%, line)
Source: securities reports
FY1971 · unconsolidated
Revenue$386M
Net income$18M
Net margin4.7%
FY1985 · unconsolidated
Revenue$2.6B
Net income$123M
Net margin4.7%
  1. 1971Senboku Works No. 1 starts up
  2. 1972First Brunei LNG cargo — Japan's second city-gas utility on LNG
  3. 1975Natural-gas conversion of the supply area begins
  4. 1984Himeji Works starts up
  5. 1990Conversion completed across all six prefectures

By the early 1970s air pollution had become a political problem and gas demand was still climbing, and Osaka Gas committed to liquefied natural gas. The Senboku Works No. 1 plant started up in October 1971, and in December 1972 the tanker Gadinia delivered the first Brunei LNG cargo under a joint contract with Tokyo Electric Power and Tokyo Gas. It made Osaka Gas the second Japanese city-gas utility to take LNG, after Tokyo Gas in 1969. The commitment was structural rather than incremental: tankers, receiving terminals and pipelines all had to be paid for before a single unit was sold, and the twenty-to-twenty-five-year contracts that secured the feedstock fixed the shape of Kansai's energy supply for a generation.

Changing the feedstock was the easier half. Natural gas has a different calorific value from oil-based gas, so every appliance owned by every customer across six prefectures had to be converted or replaced, one at a time, district by district, without interrupting supply. Conversion work began in May 1975. Receiving capacity was expanded in parallel — Senboku No. 2 in 1977, the Himeji Works in 1984 — while the field crews worked through the territory. In December 1990, after roughly fifteen years and no accidents, the last district was switched over. Sulphur- and nitrogen-oxide emissions fell and supply efficiency rose.

The conversion also settled a long-term liability. Osaka Gas had rebuilt feedstock, production and customer appliances into a single natural-gas system, and in doing so had tied its earnings to the price of imported LNG. Long-term contracts guarantee volume, not margin; under a regulated tariff, a rise in the import price lands on profit. Everything the company did over the next thirty years was, in one way or another, an answer to that.

Read the full history in Japanese →


1991The ¥100 billion ceiling

Revenue (¥ bn, bars) · net margin (%, line)
Source: securities reports
FY1992 · consolidated
Revenue$5.3B
Net income$189M
Net margin3.6%
FY2009 · consolidated
Revenue$14.2B
Net income$385M
Net margin2.7%
  1. 2005Centenary of gas supply (from October 1905)
  2. 2006Ordinary profit tops ¥100 billion for the first time
  3. 2007Falls back to ¥89.6 billion on feedstock costs; Ozaki becomes president
  4. 2009Revenue ¥1.327 trillion, operating profit down to ¥66.9 billion

With the conversion finished, the company was stable and stuck. Ordinary profit was ¥76.0 billion in the year to March 2002 and ¥97.5 billion in the year to March 2005, and in the year to March 2006 it cleared $888.4M (¥103bn) for the first time — then fell back to ¥89.6 billion the next year as feedstock costs rose. The ¥100 billion mark was reached but never held. Having rebuilt the business once, Osaka Gas found that selling gas in a mature region could not lift the ceiling any further.

The revenue line made the point plainly. Because the tariff passes feedstock costs through, sales tracked LNG prices rather than customers: turnover grew from ¥1.066 trillion in the year to March 2006 to ¥1.327 trillion in the year to March 2009, while operating profit over the same span shrank from ¥100.7 billion to ¥66.9 billion. Higher input costs inflate the top line and compress the margin. Non-gas businesses existed — Ogis Research Institute in IT services from 1983, property development — but they were too small to absorb the swing, and consolidated profit remained overwhelmingly a gas number.

The balance sheet showed the same rigidity: interest-bearing debt in the ¥400–500 billion range, equity essentially flat at ¥628.5 billion in March 2006 and ¥612.9 billion in March 2009, and a capital programme dictated by LNG terminals and pipeline networks. Hirofumi Shibano handed the presidency to Hiroshi Ozaki in June 2007. The question they had inherited was the one that would define the next decade: where to find earnings outside a regulated domestic tariff.

Read the full history in Japanese →


2010Deregulation, shale, and the split-up

Revenue (¥ bn, bars) · net margin (%, line)
Source: securities reports
FY2010 · consolidated
Revenue$12.5B
Net income$550M
Net margin4.4%
FY2026 · consolidated
Revenue$12.8B
Net income$966M
Net margin7.5%
  1. 2009Senboku Natural Gas Power Plant starts up
  2. 2016Household electricity retailing opened; Osaka Gas enters
  3. 2017Gas retailing liberalised; Kansai Electric enters the household market
  4. 2019Acquires Sabine Oil & Gas; Freeport LNG begins commercial operation
  5. 2022Pipeline business separated into Osaka Gas Network
  6. 2023Overseas profit of ¥60.8 billion offsets a domestic operating loss

The first answer was electricity. The Senboku Natural Gas Power Plant came on line in April 2009, built beside the company's own LNG terminal and fuelled by gas it had already contracted for — a vertically integrated position no new entrant could copy. When household electricity retailing was opened in April 2016, Osaka Gas could sell power over the customer relationships and service network it already owned. The opening ran both ways: gas retailing was liberalised in April 2017 and Kansai Electric Power moved into the household gas market, turning a single region into a two-front fight. Three-quarters of the volume is commercial and industrial, where price competition with the utility had already been running since the first deregulation in 1996.

The second answer was overseas, and it went badly first. The upstream energy segment lost ¥800 million in the year to March 2014 and ¥6.3 billion the next, and exploration in undeveloped blocks failed to return what had been assumed — President Masataka Fujiwara has since spoken of projects that produced losses of more than ¥30 billion. The conclusion drawn was specific rather than cautionary: stop drilling where nothing has been produced, and buy into fields that are already producing. In July 2019 Osaka Gas acquired the Texas shale developer Sabine Oil & Gas outright, the first purchase of a US shale company by a Japanese firm, and in December the Freeport LNG liquefaction project began commercial operation — liquefaction, shale production and independent power now forming a three-part US business.

The change of method paid quickly. Overseas energy operating profit went from ¥3.6 billion in the year to March 2021 to ¥33.7 billion, then ¥60.8 billion in the year to March 2023 — the same year the domestic energy segment fell to an operating loss of ¥31.4 billion on soaring LNG prices. For the first time, the overseas business covered a domestic shortfall; without it the group would have been in the red. Meanwhile the pipeline business was legally separated into Osaka Gas Network in April 2022, and the group reorganised into three segments — domestic energy, international energy, and Life & Business Solutions — completing a structure that keeps the regulated network apart from the businesses free to take risk.

Read the full history in Japanese →


Key decisions — the author’s view

Revenue (¥ bn) · net margin % · around FY1945

Absorbing fourteen gas companies and taking on all of Kinki (1945)

When a passive merger recovered its meaning

To file the fourteen-company merger away as mere compliance with wartime control is to lose sight of what followed. Even granting that the consolidation moved with the state's programme for combining firms, the result — city-gas supply across the six prefectures of Kinki gathered into a single company — was not a small thing. The structure that unified the scattered supply obligations of Kobe Gas, Kyoto Gas and the rest became the skeleton of the region's post-war energy base.

That said, one cannot claim Osaka Gas actively chose this unification. The merger proceeded in the year the war ended, inside a national policy of consolidation, and supply immediately afterwards — caught between material shortages and reconstruction demand — was anything but stable. Yet once the network had been bound into one company, a single operator could plan and carry out infrastructure renewal on a six-prefecture scale, as the natural-gas conversion later would. A consolidation that began passively took a long time to recover its meaning; this is one example of it.

Revenue (¥ bn) · net margin % · around FY1975

Brunei LNG and converting the entire supply area to natural gas (1975)

Where quality of supply ends and volatility of earnings begins

To label these fifteen years an equipment upgrade for environmental compliance is to misread the character of the undertaking. Converting to natural gas meant not only changing the feedstock and the production plant but rebuilding, one unit at a time, the appliances of an enormous number of customers scattered across six prefectures — an irreversible, simultaneous public works project. That Osaka Gas saw it through from 1975 to 1990 without interrupting supply and without an accident is where the bearing of the company as a public utility shows itself.

Yet the conversion also fixed in place a dependence on LNG bought abroad. Long-term contracts promise stable supply while leaving a structure in which a rise in the import price squeezes profit, and in later years Osaka Gas would keep facing that weight under a regulated tariff. The decision to change the feedstock raised the quality of supply and, in the same motion, left management with the question of where to place the volatility of earnings. Whether the conversion succeeded still depended on how well the rebuilt business would afterwards be used.

Revenue (¥ bn) · net margin % · around FY2019

Writing off self-operated shale exploration and buying Sabine Oil & Gas outright (2019)

Learning to buy instead of drill

To settle this as a company chastened by failed overseas investment turning to prudent acquisition is to miss the point. What Osaka Gas changed was not the size of the cheque but the order in which value is measured. In self-operated exploration you cannot know whether the formation matches the model until you drill; $266M (¥29bn) was the price of that uncertainty. With Sabine the company took a partial interest in 2018, confirmed the production record, and only then went for the whole of the equity. The core of the decision lies in switching the object of the bet — from assets you understand only after drilling to assets you can measure by output.

That said, buying rather than drilling was not the safe road. The acquisition price of roughly $596.3M (¥65bn) is more than double the ¥29 billion lost. Taking a whole company means accepting commodity-price exposure exactly as exploration does. President Fujiwara can speak openly of "losses of more than ¥30 billion" because Sabine grew into a pillar of profit, in years when the American business out-earned the Japanese one — an outcome that was in no way guaranteed in 2019. How you fold a failure, and how you re-choose the ground for the next bet: Osaka Gas's resource investment can be read as one case study.

Each heading links to the full Japanese analysis — background, decision and outcome, with sources.


References & sources

This is a condensed English edition. The full, source-by-source history — with the detailed narrative, financial tables, shareholders and executives — is maintained in Japanese: 日本語版(詳細)— Osaka Gas full history in Japanese →

  1. Osaka Gas Co., Ltd. — 有価証券報告書 (annual securities reports), filed with the Financial Services Agency.
  2. Osaka Gas Co., Ltd. — earnings briefings and Q&A (決算説明会), including the Q2 briefing for the year ending March 2025 (President Masataka Fujiwara on overseas investment losses and on competition with Kansai Electric Power).
  3. Daigas Group — 統合報告書 / annual reports, FY2014–FY2026. Osaka Gas IR library.
  4. Kaisha Nenkan会社年鑑 (Nihon Keizai Shimbun), 1976 edition, for pre-1975 sales and profit figures.
  5. Osaka Gas Co., Ltd. — corporate history and chronology (沿革). Company profile.

Yen amounts are converted at the average rate of each figure’s own year — not today’s rate; revenue charts are shown in yen. Exchange rates & sources — the full ¥/US$ table →


Disclaimer


Data API

Osaka Gas’s history, financials, executives and shareholders are published as static JSON — no key, plain GET.

Method Endpoint Returns
GET /api/companies.json All companies
GET /api/9532/manifest.json Resource index
GET /api/9532/history.json History overview
GET /api/9532/timeline.json Chronology
GET /api/decisions.json All management decisions (index)
GET /api/9532/decisions.json Management decisions (index)
GET /api/9532/decisions/{slug}.json One decision (full dossier)
GET /api/9532/executives.json Executives
GET /api/9532/shareholders.json Major shareholders
GET /api/9532/financials.json Financial statements
GET /api/9532/financials-longterm.json Long-term results
GET /api/9532/segments.json Business segments
GET /api/9532/regions.json Sales by region
GET /api/9532/workforce.json Workforce