Deep Energy Resources Ltd(Merged) · DEEPENR
₹1 Cr
₹1 Cr
₹1 Cr
₹1 Cr
₹4 Cr
₹8 Cr
₹20 Cr
₹1 Cr
₹1 Cr
₹1 Cr
₹1 Cr
₹1 Cr
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20-quarter listed-company comparison
Oil Drilling & Exploration Stocks in India
Oil Drilling & Exploration: Oil & Natural Gas Corpn Ltd owns the largest revenue base; United Drilling Tools Ltd has the fastest current growth.
The 3 Oil Drilling & Exploration companies listed in India are Oil & Natural Gas Corpn Ltd (₹3.0 L Cr, the largest), Deep Energy Resources Ltd(Merged) and United Drilling Tools Ltd. 2 of 3 covered companies beat NIFTY 500 on relative strength. Readings are as of 28 Sep 2026.
01 · the index people search for
Nifty Oil Drilling & Exploration Index — Constituents & Performance
All 3 listed Indian Oil Drilling & Exploration companies are named here, largest first — the same constituent set people search for as the Nifty Oil Drilling & Exploration index. Every figure is equal-weighted across those companies and carries its own as-of date. One large constituent cannot set the reading.
- Oil & Natural Gas Corpn Ltd₹3.0 L Cr
- Deep Energy Resources Ltd(Merged)₹999 Cr
- United Drilling Tools Ltd₹487 Cr
02 · the sector itself · before any single company
How has Oil Drilling & Exploration moved against NIFTY 500?
The line below covers up to 5.2 years and opens on the 5Y view; the buttons cut it shorter. Over the most recent two of them this sector is 34% ahead of NIFTY 500. Earnings across its companies fell 1% on average over the last four reported quarters. It has been ahead of NIFTY 500 on a rolling three-month view for 32 weeks running.
LEADER · ahead 32w~Price up, without the fundamentals confirming7 of 8 companies ahead of NIFTY 500 by 5% or more over three months
RS ↑32w · 7/8 >200d (+0) · 7/8 lead (+4) · EPS 5/8↑
Oil Drilling & Exploration, equal-weighted, based at 200
NIFTY 500, same base, same start
trailing 12-month earnings per share rising
falling
Oil Drilling & Exploration, equal-weighted, based at 200
NIFTY 500, same base, same start
trailing 12-month earnings per share rising
falling
Oil Drilling & Exploration, equal-weighted, based at 200
NIFTY 500, same base, same start
trailing 12-month earnings per share rising
falling
Both lines start at 200 in the same week, so the distance between them is the whole story: the sector line is an equal-weighted index of its 8 companies. The bars underneath are trailing 12-month earnings per share, one bar per reported quarter, each member rebased to 100 at the start and the sector taking the median — so a price line pulling away from flat bars is a re-rating, not earnings. A bar turns red when that figure is lower than the quarter before. Rules are fixed and applied identically everywhere on this site: ahead by 5% or more over three months, or behind by 20% or more over a year while earnings grew 20% or more. Hover any point to read both values and the gap. This is a description of what the numbers did, not advice.
03 · sector relative strength, before individual stocks
Is Oil Drilling & Exploration outperforming NIFTY 500?
Oil Drilling & Exploration has outperformed NIFTY 500 by 16.2% over the last 52 weeks. Over 13 weeks the gap is a lead of 4.3%. 2 of 3 covered companies currently beat NIFTY on Mansfield relative strength, so leadership inside the sector is selective. Deep Energy Resources Ltd(Merged) is the strongest against the sector itself at +15.3%.
+4.3%Sector vs NIFTY 500 · 13 weeks
+16.2%Sector vs NIFTY 500 · 52 weeks
2/3Stocks leading NIFTY 500
1/2Stocks leading sector
Sector metric: — as of latest available · unclassified · direction unavailable.
The central tension: the companies with the most scale are not necessarily the companies creating the most change.
Start with scale. Then earnings trajectory. Then business quality. Only after those three agree should price leadership carry much weight.
Bottom line
Oil Drilling & Exploration has outperformed NIFTY 500 by 16.2% over 52 weeks and 4.3% over 13 weeks. 2 of 3 covered companies beat NIFTY on Mansfield relative strength, while 1 of 2 beat the sector itself. Oil & Natural Gas Corpn Ltd leads with revenue of ₹7,04,122 crore, based on 3 of 3 comparable companies through Jun 2026.
Companies
3
complete canonical membership
Combined market value
₹3.0 L Cr
Oil & Natural Gas Corpn Ltd
Revenue growing
2/3
positive TTM year-on-year growth
Beating NIFTY 500
2/3
positive Mansfield relative strength
Comparing 3 of 3
04 · research priority, made explicit
4-Factor Sector Score
An additive sector-relative research score. The four displayed point contributions always equal the total: Growth & earnings (35), Capital efficiency (25), Valuation (20), and Relative strength (20). Missing or stale evidence is absorbed inside the affected factor, never applied as a hidden adjustment.
Growth & earnings · 35%Capital efficiency · 25%Valuation · 20%Relative strength · 20%
United Drilling Tools Ltd has the strongest current balance of earnings trajectory, business quality, valuation and price confirmation, with 64.8% evidence confidence.
Deep Energy Resources Ltd(Merged) has stronger price confirmation than earnings confirmation; that is a research prompt, not permission to chase.
How this score is built, and what the marks mean
Missing observations are not scored as bad. Their missing weight lowers confidence and pulls the final score toward neutral. PEG is not shown when the ratio cannot mean anything: the company must be making a profit, its price-to-earnings must be positive, and its three-year earnings growth must fall between 5% and 60%. Dividing a price multiple by a loss, or by growth measured off a tiny base, produces a number that looks precise and tells you nothing. Under relative strength, one mark per week shows the last 12 weeks: a mark is filled where the company led NIFTY 500 by 5% or more over the 13 weeks ending that week, which is the same test used everywhere on this site. Price stage places the company on the same six-step curve the sector itself is placed on — basing, turning, breaking out, leader, fading, asleep — read from how many weeks running it has led NIFTY 500 and whether that lead is widening or shrinking. It describes where the PRICE stands, not the earnings trajectory and not a recommendation, and it is left blank for a company whose weekly history is too short or too stale to read.
| Company | Score | Price stage | Growth & earnings/35 | Capital efficiency/25 | Valuation/20 | Relative strength/20 |
|---|---|---|---|---|---|---|
| 1United Drilling Tools LtdUNIDT | 61.0/100Mixed-positive evidence65% evidence | 23.0/35 Revenue 7.6% · PAT 26.3% · OPM change 0.9 pp 83% evidence | 13.3/25 ROCE 10.4% · OPM 17.2% 95% evidence | 12.2/20 P/E 25.7× · PEG — 35% evidence | 12.5/20 RS sector — · RS bench 23.1% · 1Y — 25% evidence | |
| Exact sum: 23 + 13.3 + 12.2 + 12.5 = 61 · Decision use: Balanced evidence: keep at normal research priority and require another comparable period before raising conviction. | ||||||
| 2Oil & Natural Gas Corpn LtdONGC | 44.2/100Mixed-negative evidence79% evidence | TURNING | 15.5/35 Revenue 7.1% · PAT 11.7% · OPM change -8 pp 95% evidence | 12.6/25 ROCE 14.2% · OPM 8% 76% evidence | 11.2/20 P/E 6.8× · PEG — 35% evidence | 4.9/20 RS sector -9.5% · RS bench -5.5% · 1Y -0.4%0 of 12 weeks ahead 100% evidence |
| Exact sum: 15.5 + 12.6 + 11.2 + 4.9 = 44.2 · Decision use: Balanced evidence: keep at normal research priority and require another comparable period before raising conviction. | ||||||
| 3Deep Energy Resources Ltd(Merged)DEEPENR | 50.7/100Thin evidence · provisional38% evidence | 17.4/35 Revenue -80% · PAT -80% · OPM change 32.5 pp 27% evidence | 6.3/25 ROCE -0.2% · OPM -10.6% 57% evidence | 10.0/20 P/E — · PEG — 0% evidence | 17.0/20 RS sector 15.3% · RS bench 40.7% · 1Y —6 of 12 weeks ahead to 2024-09-25 70% evidence | |
| Exact sum: 17.4 + 6.3 + 10 + 17 = 50.7 · Decision use: Fill the missing evidence before acting; the ranking is deliberately pulled toward neutral. | ||||||
05 · what price has already done
Market action
Oil & Natural Gas Corpn Ltd has the strongest one-year price move in Oil Drilling & Exploration at -0.4%. Deep Energy Resources Ltd(Merged) leads on Mansfield relative strength against NIFTY at +40.7%. 2 of 3 covered companies are above zero on that measure. Every line covers 313 weekly closes through 2026-09-25.
Price and relative strength
Every company, the sector's own index and NIFTY 500 all start level on the left edge of the window, so only the distance between the lines counts — the highest line has risen the most since then, and the chart at the top of this page is drawn the same way. It opens on one year; the buttons beside it stretch that to three or five.
How far ahead of or behind NIFTY 500 each company has been running, measured against its own recent average of that comparison, so the flat line at zero IS NIFTY 500: above it the company is beating the market, below it the market is beating the company. It opens on one year.
The same measure taken against Oil Drilling & Exploration itself instead of the whole market, so the flat line at zero is the sector: above it the company is beating its own peers, which is the sharper test of the two. It opens on one year.
06 · compare level, then change
Revenue Scale & Growth Durability
Oil & Natural Gas Corpn Ltd has the highest Revenue among the 3 Oil Drilling & Exploration companies compared here, at ₹7,04,122 crore. United Drilling Tools Ltd is next at ₹181 crore. United Drilling Tools Ltd has the highest Revenue growth at 7.6%, so level and change sit with different companies.
What the numbers say: Oil & Natural Gas Corpn Ltd is the scale leader at ₹7,04,122 crore, 3,888× the revenue of United Drilling Tools Ltd. United Drilling Tools Ltd's growth is 7.6% from a ₹181 crore base, with 13 reported observations in the 20-quarter window. Treat the growth leader as an acceleration candidate, not as equally proven scale.
LeaderOil & Natural Gas Corpn Ltd · ₹7,04,122 crore
Gap3,888× versus #2 · United Drilling Tools Ltd
Persistence4/8 recent comparable periods
Coverage3/3 companies · 40 observations
Investor read: Oil & Natural Gas Corpn Ltd is the scale benchmark; United Drilling Tools Ltd is the acceleration watch. Promote the challenger only if growth persists and converts into margin and returns.
This conclusion weakens if: Oil & Natural Gas Corpn Ltd's growth falls below United Drilling Tools Ltd's for two consecutive comparable reports while operating margin also compresses.
Revenue is compared on a common reported-currency basis. Growth is year-on-year, so seasonality does not masquerade as progress.
Revenuelargest
Revenue growthfastest growers
Revenue · company comparison
3/3 level · 3/3 change
On every company-comparison chart on this page: solid lines show level, dotted lines show change when “Both” is selected, and a missing report breaks the line rather than being invented.
All-company data · latest reported quarter
In every all-company table on this page, each figure is the company’s latest single reported quarter. The rankings above them use trailing-twelve-month or current-market values, so a company can legitimately show a different number in each.
| Company | Revenue | Revenue growth | Reported |
|---|---|---|---|
| Oil & Natural Gas Corpn Ltd ONGC | ₹2.0 L Cr | 26% | Jun 2026 |
| United Drilling Tools Ltd UNIDT | ₹43 Cr | 39% | Mar 2026 |
| Deep Energy Resources Ltd(Merged) DEEPENR | ₹1 Cr | 84% | Jun 2024 |
Full 20-quarter history · every available company
Revenue · reported quarter history
Oil & Natural Gas Corpn Ltd · ONGC
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₹1.7 L Cr
₹1.6 L Cr
₹1.6 L Cr
₹1.5 L Cr
₹1.7 L Cr
₹1.7 L Cr
₹1.7 L Cr
₹1.6 L Cr
₹1.7 L Cr
₹1.7 L Cr
₹1.6 L Cr
₹1.6 L Cr
₹1.7 L Cr
₹1.7 L Cr
₹2.0 L Cr
United Drilling Tools Ltd · UNIDT
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₹22 Cr
₹18 Cr
₹31 Cr
₹34 Cr
₹43 Cr
₹54 Cr
₹49 Cr
₹34 Cr
₹31 Cr
₹32 Cr
₹56 Cr
₹51 Cr
₹43 Cr
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Revenue growth · reported quarter history
Deep Energy Resources Ltd(Merged) · DEEPENR
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—
—
49%
561%
1,059%
2,426%
-35%
-86%
-91%
-95%
84%
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Oil & Natural Gas Corpn Ltd · ONGC
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-1.1%
4.9%
3.1%
7.9%
-0.1%
-2.6%
-3.5%
-0.9%
0.1%
3.6%
26%
United Drilling Tools Ltd · UNIDT
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91%
209%
56%
-0.2%
-27%
-42%
14%
49%
39%
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07 · compare level, then change
Operating Economics & Margin Trend
United Drilling Tools Ltd has the highest OPM among the 3 Oil Drilling & Exploration companies compared here, at 17.2%. Oil & Natural Gas Corpn Ltd is next at 8%. Deep Energy Resources Ltd(Merged) has the highest Margin change at +32.5 percentage points, so level and change sit with different companies.
What the numbers say: United Drilling Tools Ltd leads opm at 17.2%; Deep Energy Resources Ltd(Merged) leads margin change at +32.5 percentage points.
LeaderUnited Drilling Tools Ltd · 17.2%
Gap115% versus #2 · Oil & Natural Gas Corpn Ltd
Persistence7/8 recent comparable periods
Coverage3/3 companies · 51 observations
Investor read: United Drilling Tools Ltd sets the level benchmark; use the change leader as an inflection watch only after another comparable report confirms it.
This conclusion weakens if: The next two comparable reports reverse the current margin change signal.
Operating margin compares operating profit with revenue. Improvement is measured in percentage points, not percentage growth.
OPMhighest
Margin changefastest expanders
Operating margin · company comparison
3/3 level · 3/3 change
All-company data · latest reported quarter
| Company | OPM | Margin change | Reported |
|---|---|---|---|
| United Drilling Tools Ltd UNIDT | 17% | +0.9 pp | Mar 2026 |
| Oil & Natural Gas Corpn Ltd ONGC | 8.0% | −8.0 pp | Jun 2026 |
| Deep Energy Resources Ltd(Merged) DEEPENR | -11% | +32.5 pp | Jun 2024 |
Full 20-quarter history · every available company
OPM · reported quarter history
Deep Energy Resources Ltd(Merged) · DEEPENR
27%
17%
25%
11%
44%
7.3%
4.6%
-43%
-93%
-10%
-15%
-11%
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Oil & Natural Gas Corpn Ltd · ONGC
15%
15%
15%
10%
7.9%
13%
13%
19%
19%
12%
13%
13%
13%
15%
13%
16%
17%
15%
15%
8.0%
United Drilling Tools Ltd · UNIDT
45%
38%
29%
15%
11%
17%
26%
21%
15%
6.6%
15%
14%
15%
16%
16%
19%
16%
18%
17%
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Margin change · reported quarter history
Deep Energy Resources Ltd(Merged) · DEEPENR
−55.2 pp
−64.7 pp
−6.5 pp
−52.8 pp
+16.2 pp
−9.9 pp
−20.1 pp
−54.5 pp
−136.6 pp
−17.4 pp
−19.3 pp
+32.5 pp
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Oil & Natural Gas Corpn Ltd · ONGC
−2.0 pp
+3.4 pp
+1.9 pp
−4.8 pp
−6.7 pp
−1.7 pp
−2.4 pp
+8.7 pp
+11.1 pp
−1.0 pp
0.0 pp
−6.0 pp
−6.0 pp
+3.0 pp
0.0 pp
+3.0 pp
+4.0 pp
0.0 pp
+2.0 pp
−8.0 pp
United Drilling Tools Ltd · UNIDT
+16.0 pp
−7.9 pp
+17.7 pp
−47.2 pp
−34.5 pp
−20.4 pp
−3.7 pp
+5.7 pp
+4.5 pp
−10.6 pp
−11.0 pp
−6.5 pp
+0.1 pp
+9.3 pp
+1.5 pp
+4.7 pp
+0.9 pp
+2.0 pp
+0.9 pp
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08 · compare level, then change
Profit Scale & Acceleration
Oil & Natural Gas Corpn Ltd has the highest Net profit among the 3 Oil Drilling & Exploration companies compared here, at ₹44,793 crore. United Drilling Tools Ltd is next at ₹19 crore. United Drilling Tools Ltd has the highest Profit growth at 26.3%, so level and change sit with different companies.
What the numbers say: Oil & Natural Gas Corpn Ltd leads with ₹44,793 crore of TTM profit, 2,358× the profit of United Drilling Tools Ltd. United Drilling Tools Ltd shows 26.3% growth from a ₹19 crore profit base. Compare the size of the base and persistence before ranking acceleration above profit scale.
LeaderOil & Natural Gas Corpn Ltd · ₹44,793 crore
Gap2,358× versus #2 · United Drilling Tools Ltd
Persistence4/8 recent comparable periods
Coverage3/3 companies · 40 observations
Investor read: Oil & Natural Gas Corpn Ltd sets the level benchmark; use the change leader as an inflection watch only after another comparable report confirms it.
This conclusion weakens if: The next two comparable reports reverse the current profit growth signal.
Net profit is the residual after operating costs, interest and tax. Growth off a loss or near-zero base is excluded from the fastest-grower rank.
Net profitlargest
Net profit · company comparison
3/3 level · 2/3 change
All-company data · latest reported quarter
| Company | Net profit | Profit growth | Reported |
|---|---|---|---|
| Oil & Natural Gas Corpn Ltd ONGC | ₹6.6K Cr | -43% | Jun 2026 |
| United Drilling Tools Ltd UNIDT | ₹5 Cr | 23% | Mar 2026 |
| Deep Energy Resources Ltd(Merged) DEEPENR | ₹-0 Cr | -49% | Jun 2024 |
Full 20-quarter history · every available company
Net profit · reported quarter history
Deep Energy Resources Ltd(Merged) · DEEPENR
₹0 Cr
₹0 Cr
₹0 Cr
₹0 Cr
₹1 Cr
₹0 Cr
₹1 Cr
₹-0 Cr
₹-1 Cr
₹-0 Cr
₹0 Cr
₹-0 Cr
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Oil & Natural Gas Corpn Ltd · ONGC
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₹11.7K Cr
₹6.5K Cr
₹17.9K Cr
₹16.2K Cr
₹10.5K Cr
₹11.1K Cr
₹9.8K Cr
₹9.8K Cr
₹9.7K Cr
₹9.0K Cr
₹11.6K Cr
₹12.6K Cr
₹11.9K Cr
₹13.7K Cr
₹6.6K Cr
United Drilling Tools Ltd · UNIDT
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₹3 Cr
₹2 Cr
₹2 Cr
₹2 Cr
₹3 Cr
₹4 Cr
₹4 Cr
₹3 Cr
₹4 Cr
₹3 Cr
₹6 Cr
₹5 Cr
₹5 Cr
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Profit growth · reported quarter history
Deep Energy Resources Ltd(Merged) · DEEPENR
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—
-96%
12,500%
275%
381%
-4,100%
-158%
-287%
-49%
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Oil & Natural Gas Corpn Ltd · ONGC
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—
—
—
—
—
—
—
-9.9%
71%
-45%
-39%
-7.3%
-19%
18%
28%
23%
53%
-43%
United Drilling Tools Ltd · UNIDT
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—
—
—
—
—
—
—
—
9.5%
184%
79%
9.1%
25%
-32%
39%
106%
23%
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09 · compare level, then change
Return On Capital Employed
Oil & Natural Gas Corpn Ltd has the highest ROCE among the 3 Oil Drilling & Exploration companies compared here, at 14.2%. United Drilling Tools Ltd is next at 10.4%. The same company also holds the highest ROCE change, at +2 percentage points. 3 of 3 companies report a comparable reading, the latest through Jun 2026.
What the numbers say: Oil & Natural Gas Corpn Ltd leads ROCE at 14.2%, 3.8 percentage points above United Drilling Tools Ltd. Oil & Natural Gas Corpn Ltd has the strongest latest improvement at +2 percentage points. Read the leader beside the density of its reported history: a sparse high return is a candidate; a repeated high return is evidence of durability.
LeaderOil & Natural Gas Corpn Ltd · 14.2%
Gap36.5% versus #2 · United Drilling Tools Ltd
PersistenceNot enough history
Coverage3/3 companies · 0 observations
Investor read: Oil & Natural Gas Corpn Ltd sets the level benchmark; use the change leader as an inflection watch only after another comparable report confirms it.
This conclusion weakens if: The next two comparable reports reverse the current roce change signal.
ROCE asks how much operating return the business earns on the capital employed. Direction matters, but a single exceptional year should not be mistaken for durability.
ROCEhighest
ROCE changefastest improvers
Return on capital · company comparison
3/3 level · 3/3 change
Withheld from this chart: Oil & Natural Gas Corpn Ltd (ONGC) — its two data sources disagree by up to 7.6% on reported income across 15 comparable periods, so its derived ratios are withheld. A figure two sources cannot agree on is not drawn — the gap is a decision, not missing data.
All-company data · latest reported quarter
| Company | ROCE | ROCE change | Reported |
|---|---|---|---|
| Oil & Natural Gas Corpn Ltd ONGC | 14% | +2.0 pp | Jun 2026 |
| United Drilling Tools Ltd UNIDT | 10% | +2.0 pp | Mar 2026 |
| Deep Energy Resources Ltd(Merged) DEEPENR | -0.2% | +0.6 pp | Jun 2024 |
Full 20-quarter history · every available company
No consistent historical series is available for roce.
No consistent historical series is available for roce change.
10 · compare level, then change
Valuation Against Growth & Quality
No company in this Oil Drilling & Exploration comparison reports a valuation figure this section can compare, so the PEG rank is empty. On P/E, Oil & Natural Gas Corpn Ltd is lowest at 6.79×, across 2 of 3 companies with a usable reading.
What the numbers say: There is not enough comparable evidence to name a reliable peg leader.
LeaderNo comparable leader
GapNot enough peers
PersistenceNot enough history
Coverage0/3 companies · 0 observations
Investor read: Treat valuation as permission to investigate, never as a standalone reason to buy.
This conclusion weakens if: The next two comparable reports reverse the current p/e signal.
PEG is shown only when earnings are positive and three-year EPS growth is between 5% and 60%. It is recomputed consistently as the trailing P/E divided by that growth rate — reported earnings, never an expected-earnings multiple. On Indian companies it is shown only where the two data feeds agreed. Where any of that fails the ratio is left out rather than printed: a P/E divided by a loss, or by growth measured off a tiny base, is a number that looks precise and means nothing.
PEGlowest PEG
—Not enough comparable data—
Valuation · company comparison
0/3 level · 2/3 change
All-company data · latest reported quarter
| Company | PEG | P/E | Reported |
|---|---|---|---|
| Oil & Natural Gas Corpn Ltd ONGC | — | 7.0 | Jun 2026 |
| Deep Energy Resources Ltd(Merged) DEEPENR | — | 2,247.5 | Jun 2024 |
| United Drilling Tools Ltd UNIDT | — | 17.3 | Mar 2026 |
Full 20-quarter history · every available company
No consistent historical series is available for peg.
P/E · reported quarter history
Deep Energy Resources Ltd(Merged) · DEEPENR
295.9
372.5
535.0
790.0
2,407.5
323.1
238.4
199.5
273.2
2,435.0
2,247.5
—
—
—
—
—
—
—
—
—
Oil & Natural Gas Corpn Ltd · ONGC
8.0
5.2
5.2
3.7
3.0
4.3
4.3
4.9
5.6
5.3
7.1
6.9
8.2
7.1
7.7
8.4
8.3
8.0
9.3
7.0
United Drilling Tools Ltd · UNIDT
—
—
—
15.4
16.4
20.9
26.8
39.4
56.8
62.5
49.6
50.0
41.3
38.3
29.6
30.2
28.7
27.9
17.3
—
11 · before the conclusion, check the blind spots
What can make this comparison misleading?
This Oil Drilling & Exploration comparison names 7 specific ways its own evidence can mislead, all listed below. 1 of the 3 companies reports on an older date than the sector's freshest reporters, so its rank is marked stale. 1 has second-feed figures withheld because the two sources disagree. A high growth rate can still be a low-base artefact.
Keep these limits visible
- A high growth rate can be a low-base artefact. The page keeps level and change separate for that reason.
- A high ROCE can be temporary or flattered by a small capital base. Read it beside margin, cash conversion and reinvestment.
- The 4-Factor Sector Score ranks research priority, not portfolio action. Management quality, catalysts and risks need equally fresh evidence before capital is deployed.
- An “all companies” line chart preserves completeness, but rank changes should be checked against reporting dates before drawing a conclusion.
- 1 company has an older fundamental reporting date than the sector’s freshest reporters; its rank carries a stale marker.
- 1 company is missing from the second-feed metrics by decision, not by absence: the two sources disagree, so nothing from the second is drawn. Read those rows as narrower evidence, never as a weaker business.
- Thin comparisons: Valuation have fewer than three usable current readings.
12 · evidence and freshness
How was this comparison built?
This comparison is built from the reported filings of 3 Oil Drilling & Exploration companies, normalized to a common ₹ scale and a shared quarter axis of up to 20 quarters each. Fundamentals run through Jun 2026 and market data through 2026-09-25. A second data feed fills gaps only after identity and scale reconciliation, and missing observations are never interpolated.
FundamentalsThrough Jun 2026 · up to 20 quarters per company
Market dataThrough 2026-09-25 · weekly price and relative-strength history
Derived metricsGrowth, changes and PEG are calculated only when their inputs are comparable.
Score confidenceMissing and stale evidence reduces confidence and pulls the 0–100 research-priority score toward neutral.
Source standing0 cross-checked · 2 unverified · 1 withheld, of 3 graded companies.
How a second data feed is admitted, and what happens when it disagrees
A second feed is read only after its reported income is matched against the primary source on at least three overlapping periods. Where the two agree the figures fill silently. Where there is too little shared history to compare, the figures are still drawn — they are the only evidence there is — and marked ⚠ unverified everywhere they appear. Where the two are known to disagree, nothing from the second feed is drawn and the affected company is named under the chart it is missing from.
13 · questions investors ask, short speakable answers
Oil Drilling & Exploration company comparison FAQs
These 21 answers restate the Oil Drilling & Exploration comparison above in question form. Every one is computed from the same 3 companies and the same reported filings as the rankings and charts, current through Jun 2026. Price and relative-strength answers run through 2026-09-25. Nothing here is estimated, and none of it is a recommendation.
Is the Oil Drilling & Exploration sector outperforming NIFTY 500?
Oil Drilling & Exploration has outperformed NIFTY 500 by 16.2% over 52 weeks and 4.3% over 13 weeks. 2 of 3 covered companies beat NIFTY on Mansfield relative strength, while 1 of 2 beat the sector itself.
Which Oil Drilling & Exploration company is largest by revenue?
Oil & Natural Gas Corpn Ltd leads with revenue of ₹7,04,122 crore, based on 3 of 3 comparable companies through Jun 2026.
Which Oil Drilling & Exploration company is growing fastest?
United Drilling Tools Ltd has the fastest current revenue growth at 7.6%, across 3 of 3 comparable companies.
Which Oil Drilling & Exploration company has the strongest 4-Factor Sector Score?
United Drilling Tools Ltd ranks first at 61/100 with 64.8% evidence confidence. The score prioritizes research; it is not a buy recommendation.
How much history does this Oil Drilling & Exploration comparison include?
The page compares up to 20 reported quarters per company for fundamentals, returns and valuation, ending Jun 2026. Missing observations remain blank rather than being estimated.
How is the 4-Factor Sector Score calculated?
The four visible contributions add directly: growth and earnings up to 35 points, capital efficiency up to 25, valuation up to 20, and relative strength up to 20. Missing or stale evidence moves only the affected contribution toward neutral.
Is there a Nifty Oil Drilling & Exploration index?
NSE India maintains Nifty indices for several broad sector categories — Nifty Bank, Nifty IT, Nifty Pharma and others — but not for every sub-sector grouping on this site. Whether or not an official Nifty index covers Oil Drilling & Exploration, this page builds its own equal-weight basket of 3 listed Oil Drilling & Exploration companies — one company, one vote, regardless of market value — so no single large company dominates the reading. Figures are as of Jun 2026.
Which are the best Oil Drilling & Exploration stocks in India?
Ranked by this page's four-factor score, United Drilling Tools Ltd places first among 3 listed Oil Drilling & Exploration companies, followed by Oil & Natural Gas Corpn Ltd. That is a ranking of published data — earnings, quality, valuation and market behaviour as of Jun 2026 — and not a recommendation; Sector Alpha is not registered with SEBI as an investment adviser.
How many Oil Drilling & Exploration stocks are listed in India?
This comparison covers 3 listed Oil Drilling & Exploration companies in India, each above the size floor the site applies, with 20 quarters of reported figures per company where the filings exist. The full ranked list is on this page, as of Jun 2026.
Which Oil Drilling & Exploration company is the biggest?
Oil & Natural Gas Corpn Ltd is the largest, with trailing-twelve-month revenue of ₹7,04,122 crore, ahead of United Drilling Tools Ltd at ₹181 crore. That covers 3 of 3 companies with comparable reporting through Jun 2026.
Which Oil Drilling & Exploration company has the best profit margins?
United Drilling Tools Ltd has the highest operating margin at 17.2%, from 3 of 3 comparable companies. Deep Energy Resources Ltd(Merged) shows the biggest improvement (+32.5 percentage points — see the chart above for the starting level). A high margin matters most when it is holding or rising, not when it is peaking.
Which Oil Drilling & Exploration company makes the most profit?
Oil & Natural Gas Corpn Ltd earns the most, at ₹44,793 crore of trailing-twelve-month net profit, from 3 of 3 comparable companies. United Drilling Tools Ltd has the fastest profit growth at 26.3%, though growth off a small or recovering profit base overstates how much has actually changed.
Which Oil Drilling & Exploration company earns the highest return on capital?
Oil & Natural Gas Corpn Ltd leads on return on capital employed at 14.2%, across 3 of 3 companies. Read it beside the length of its reported history: a high return that repeats for years is evidence of a durable business, while a single high reading can be a small capital base or one good year.
Is the Oil Drilling & Exploration sector beating the market?
Oil Drilling & Exploration has outperformed NIFTY 500 by 16.2% over the last 52 weeks and 4.3% over 13 weeks, measured on an equal-weight index of its current members. Inside the sector, 2 of 3 covered companies are beating the market on their own. Sector strength does not transfer evenly to every stock in it.
Which Oil Drilling & Exploration stock has the strongest price momentum?
Deep Energy Resources Ltd(Merged) has the strongest relative strength against NIFTY 500. Relative strength answers last, after growth, quality and valuation: price can move well before the fundamentals confirm it, and sometimes without them confirming at all.
Which Oil Drilling & Exploration company scores highest for research priority?
United Drilling Tools Ltd scores 61 out of 100 with 64.8% evidence confidence, from 23 points on growth and earnings, 13.3 on capital efficiency, 12.2 on valuation and 12.5 on relative strength. This ranks what deserves work next. It is not a buy recommendation, and management quality, catalysts and risk still need separate research.
How many Oil Drilling & Exploration companies does this comparison cover, and over what period?
It compares 3 listed companies over up to 20 reported quarters of fundamentals, ending Jun 2026, plus weekly price and relative-strength history. Membership is the full sector list — nothing is dropped for having thin data.
What is the total market cap of the Oil Drilling & Exploration sector?
The 3 Oil Drilling & Exploration companies on this page carry ₹2,98,204 crore of combined market value. Oil & Natural Gas Corpn Ltd is the largest at ₹2,96,718 crore, about 100% of the sector's total on its own. Market value moves with price, so this reading is dated 2026-09-28.
How is the Oil Drilling & Exploration sector performing?
2 of the 3 covered Oil Drilling & Exploration companies are beating NIFTY 500 on Mansfield relative strength. The sector itself is 16.2% ahead of NIFTY 500 over 52 weeks on an equal-weight index of its current members. Readings are as of 2026-09-28.
Why are some values on this page blank?
A blank means that company did not report a comparable figure for that period, so nothing is shown. Missing observations are never interpolated, carried forward, or replaced with a similar-looking accounting line, and a company with missing evidence has its research score pulled toward neutral rather than being scored as bad.
Is this investment advice?
No. Every figure here is a deterministic calculation from reported company filings and market data, published for research. It contains no recommendation to buy or sell any security, does not account for your circumstances, and is not a substitute for advice from a licensed adviser.
Not SEBI Registered !! Not Investment advice !!