ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. Petro-king Oilfield Services's annualized return on capital (ROC %) for the quarter that ended in Dec. 2025 was 12.45%.
As of today (2026-07-05), Petro-king Oilfield Services's WACC % is -0.01%. Petro-king Oilfield Services's ROC % is 5.10% (calculated using TTM income statement data).
Petro-king Oilfield Services generates higher returns on investment than it costs the company to raise the capital needed for that investment. It is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases.
ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. The reason book values of debt and equity are used is because the book values are the capital the company received when issuing the debt or receiving the equity investments.
There are four key components to this definition. The first is the use of operating income or EBIT rather than net income in the numerator. The second is the tax adjustment to this operating income or EBIT, computed as a hypothetical tax based on an effective or marginal tax rate. The third is the use of book values for invested capital, rather than market values. The final is the timing difference; the capital invested is from the end of the prior year whereas the operating income or EBIT is the current year's number.
Why is ROC % important?
Because it costs money to raise capital. A firm that generates higher returns on investment than it costs the company to raise the capital needed for that investment is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases, whereas a firm that earns returns that do not match up to its cost of capital will destroy value as it grows.
As of today, Petro-king Oilfield Services's WACC % is -0.01%. Petro-king Oilfield Services's ROC % is 5.10% (calculated using TTM income statement data).
Petro-king Oilfield Services generates higher returns on investment than it costs the company to raise the capital needed for that investment. It is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases.
Be Aware
Like ROE % and ROA %, ROC % is calculated with only 12 months of data. Fluctuations in the company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.
Petro-king Oilfield Services ROC % Related Terms
Petro-king Oilfield Services ROC % Historical Data
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Note:
The Operating Income data used here is two times the semi-annual (Dec. 2025) data.
The tax rate is limited to between 0% and 100%.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Petro-king Oilfield Services (HKSE:02178) has a ROC % of 12.45% as of Dec. 2025. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Petro-king Oilfield Services and its competitors.
Is Petro-king Oilfield Services' ROC % too high?
Petro-king Oilfield Services' current ROC % is 12.45%. The Oil & Gas industry median ROC % is 3.65. Petro-king Oilfield Services' value of 12.45% is 241.1% above this industry median. Overall, Petro-king Oilfield Services has a GF Score™ of 29/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Petro-king Oilfield Services' ROC % compare to SLB and BKR?
Petro-king Oilfield Services' ROC % of 12.45% can be compared against companies in the Oil & Gas industry. The industry median ROC % is 3.65. Petro-king Oilfield Services' value of 12.45% is 241.1% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROC % for an Oil & Gas company?
The median ROC % among Oil & Gas companies is 3.65, based on 999 companies in the industry. Companies in the top quartile (top 25%) have a ROC % significantly above this median, while those in the bottom quartile fall well below. However, ROC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Petro-king Oilfield Services's current ROC % of 12.45% is 241.1% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high ROC % mean?
A high ROC % can signal that a stock is expensive relative to its fundamentals. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Petro-king Oilfield Services and its competitors. For the Oil & Gas industry, the median ROC % is 3.65 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Petro-king Oilfield Services's current ROC % is 12.45%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Petro-king Oilfield Services stock overvalued right now?
Based on GuruFocus' analysis, Petro-king Oilfield Services (HKSE:02178) is currently considered Significantly Overvalued. The stock's GF Value™ is HK$0.06, compared to a current price of HK$0.17 — trading 181.7% above its estimated fair value. The current ROC % is 12.45% and 241.1% above the Oil & Gas industry median of 3.65. Petro-king Oilfield Services' overall GF Score™ is 29/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC % calculated?
ROC % is calculated from a company's financial statements. For Petro-king Oilfield Services (HKSE:02178), the current ROC % is 12.45% as of Dec. 2025. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Petro-king Oilfield Services (HKSE:02178) Overvalued in 2026?
Based on GuruFocus' analysis, Petro-king Oilfield Services stock appears to be overvalued.
The current stock price of HK$0.17 is trading 181.7% above its estimated GF Value™ of HK$0.06.
GuruFocus considers Petro-king Oilfield Services to be Significantly Overvalued.
Key valuation signals for HKSE:02178:
ROC %: 12.45%
GF Value™: HK$0.06 vs. price of HK$0.17 (181.7% above fair value)
Industry Position: 241.1% above the Oil & Gas median
No single metric tells the full story. See the HKSE:02178 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Petro-king Oilfield Services Ltd provides oilfield and gas field technology services covering various stages in the life cycle of oilfields and gas fields including production enhancement, drilling, consultancy and integrated project management with auxiliary activities in the trading of oilfield and gas field related products. It has two reportable segments namely Oilfield project tools and services; and Consultancy services. Oilfield project tools and services include drilling work, production enhancement work, and well-completion work. It generates majority of its revenue from the Oilfield project tools and services segment. Geographically, the company operates in the People's Republic of China (PRC), the Middle East, and other countries, and generates majority of its revenue from PRC.
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